1220333133 has 8 divisors (see below), whose sum is σ = 1628255200. Its totient is φ = 812983248.

The previous prime is 1220333131. The next prime is 1220333171. The reversal of 1220333133 is 3313330221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1220333133 - 2¹ = 1220333131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220333131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138043 + ... + 146616.

It is an arithmetic number, because the mean of its divisors is an integer number (203531900).

Almost surely, 2^1220333133 is an apocalyptic number.

It is an amenable number.

1220333133 is a deficient number, since it is larger than the sum of its proper divisors (407922067).

1220333133 is a wasteful number, since it uses less digits than its factorization.

1220333133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286091.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 1220333133 is about 34933.2668526721. The cubic root of 1220333133 is about 1068.6269788155.

Adding to 1220333133 its reverse (3313330221), we get a palindrome (4533663354).

The spelling of 1220333133 in words is "one billion, two hundred twenty million, three hundred thirty-three thousand, one hundred thirty-three".