402200031021 has 4 divisors (see below), whose sum is σ = 536266708032. Its totient is φ = 268133354012.

The previous prime is 402200031011. The next prime is 402200031041. The reversal of 402200031021 is 120130002204.

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.

It is a cyclic number.

It is not a de Polignac number, because 402200031021 - 2⁷ = 402200030893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402200031011) 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, 67033338501 + ... + 67033338506.

It is an arithmetic number, because the mean of its divisors is an integer number (134066677008).

Almost surely, 2^402200031021 is an apocalyptic number.

It is an amenable number.

402200031021 is a deficient number, since it is larger than the sum of its proper divisors (134066677011).

402200031021 is a wasteful number, since it uses less digits than its factorization.

402200031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134066677010.

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

Adding to 402200031021 its reverse (120130002204), we get a palindrome (522330033225).

The spelling of 402200031021 in words is "four hundred two billion, two hundred million, thirty-one thousand, twenty-one".