21130122122022 has 64 divisors (see below), whose sum is σ = 43238245284864. Its totient is φ = 6880931447040.

The previous prime is 21130122122017. The next prime is 21130122122059. The reversal of 21130122122022 is 22022122103112.

It is a self number, because there is not a number n which added to its sum of digits gives 21130122122022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 407003538 + ... + 407055450.

It is an arithmetic number, because the mean of its divisors is an integer number (675597582576).

Almost surely, 2^{21130122122022} is an apocalyptic number.

21130122122022 is an abundant number, since it is smaller than the sum of its proper divisors (22108123162842).

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

21130122122022 is a wasteful number, since it uses less digits than its factorization.

21130122122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54573.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21130122122022 its reverse (22022122103112), we get a palindrome (43152244225134).

The spelling of 21130122122022 in words is "twenty-one trillion, one hundred thirty billion, one hundred twenty-two million, one hundred twenty-two thousand, twenty-two".