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1222322033 = 3139429743
BaseRepresentation
bin100100011011011…
…0010011101110001
310011012000101121102
41020312302131301
510000403301113
6321142334145
742201365042
oct11066623561
93135011542
101222322033
11577a726a9
122a142a355
1316630b79a
14b84a08c9
1572499758
hex48db2771

1222322033 has 4 divisors (see below), whose sum is σ = 1261751808. Its totient is φ = 1182892260.

The previous prime is 1222322029. The next prime is 1222322081. The reversal of 1222322033 is 3302232221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3302232221 = 10332060507.

It is a cyclic number.

It is not a de Polignac number, because 1222322033 - 22 = 1222322029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222321996 and 1222322014.

It is not an unprimeable number, because it can be changed into a prime (1222327033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19714841 + ... + 19714902.

It is an arithmetic number, because the mean of its divisors is an integer number (315437952).

Almost surely, 21222322033 is an apocalyptic number.

It is an amenable number.

1222322033 is a deficient number, since it is larger than the sum of its proper divisors (39429775).

1222322033 is an equidigital number, since it uses as much as digits as its factorization.

1222322033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39429774.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1222322033 is about 34961.7223975021. The cubic root of 1222322033 is about 1069.2072134333.

Adding to 1222322033 its reverse (3302232221), we get a palindrome (4524554254).

The spelling of 1222322033 in words is "one billion, two hundred twenty-two million, three hundred twenty-two thousand, thirty-three".

Divisors: 1 31 39429743 1222322033