21230162531022 has 16 divisors (see below), whose sum is σ = 42460544136960. Its totient is φ = 7076684331192.

The previous prime is 21230162531009. The next prime is 21230162531041. The reversal of 21230162531022 is 22013526103212.

It is a super-2 number, since 2×21230162531022² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7854648 + ... + 10205675.

It is an arithmetic number, because the mean of its divisors is an integer number (2653784008560).

Almost surely, 2^{21230162531022} is an apocalyptic number.

21230162531022 is an abundant number, since it is smaller than the sum of its proper divisors (21230381605938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21230162531022 is a wasteful number, since it uses less digits than its factorization.

21230162531022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18256247.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 21230162531022 its reverse (22013526103212), we get a palindrome (43243688634234).

The spelling of 21230162531022 in words is "twenty-one trillion, two hundred thirty billion, one hundred sixty-two million, five hundred thirty-one thousand, twenty-two".