1202023221 has 8 divisors (see below), whose sum is σ = 1831654464. Its totient is φ = 686870400.

The previous prime is 1202023189. The next prime is 1202023253. The reversal of 1202023221 is 1223202021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1202023189) and next prime (1202023253).

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

It is not a de Polignac number, because 1202023221 - 2⁵ = 1202023189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1202023221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202023271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28619580 + ... + 28619621.

It is an arithmetic number, because the mean of its divisors is an integer number (228956808).

Almost surely, 2^1202023221 is an apocalyptic number.

It is an amenable number.

1202023221 is a deficient number, since it is larger than the sum of its proper divisors (629631243).

1202023221 is an equidigital number, since it uses as much as digits as its factorization.

1202023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57239211.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1202023221 is about 34670.2065324105. The cubic root of 1202023221 is about 1063.2554541701.

Adding to 1202023221 its reverse (1223202021), we get a palindrome (2425225242).

The spelling of 1202023221 in words is "one billion, two hundred two million, twenty-three thousand, two hundred twenty-one".