402022737021 has 16 divisors (see below), whose sum is σ = 541679269248. Its totient is φ = 265203264000.

The previous prime is 402022736993. The next prime is 402022737043. The reversal of 402022737021 is 120737220204.

It is not a de Polignac number, because 402022737021 - 2⁵ = 402022736989 is a prime.

It is a super-2 number, since 2×402022737021² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 402022737021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402022737071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1444780 + ... + 1700421.

It is an arithmetic number, because the mean of its divisors is an integer number (33854954328).

Almost surely, 2^402022737021 is an apocalyptic number.

It is an amenable number.

402022737021 is a deficient number, since it is larger than the sum of its proper divisors (139656532227).

402022737021 is a wasteful number, since it uses less digits than its factorization.

402022737021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145652.

The product of its (nonzero) digits is 9408, while the sum is 30.

Adding to 402022737021 its reverse (120737220204), we get a palindrome (522759957225).

The spelling of 402022737021 in words is "four hundred two billion, twenty-two million, seven hundred thirty-seven thousand, twenty-one".