22100210010021 has 64 divisors (see below), whose sum is σ = 35348895187200. Its totient is φ = 12105374883840.

The previous prime is 22100210010017. The next prime is 22100210010023. The reversal of 22100210010021 is 12001001200122.

It is not a de Polignac number, because 22100210010021 - 2² = 22100210010017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22100210009979 and 22100210010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100210010023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1714905 + ... + 6865953.

It is an arithmetic number, because the mean of its divisors is an integer number (552326487300).

Almost surely, 2^{22100210010021} is an apocalyptic number.

It is an amenable number.

22100210010021 is a deficient number, since it is larger than the sum of its proper divisors (13248685177179).

22100210010021 is a wasteful number, since it uses less digits than its factorization.

22100210010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5151286.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22100210010021 its reverse (12001001200122), we get a palindrome (34101211210143).

The spelling of 22100210010021 in words is "twenty-two trillion, one hundred billion, two hundred ten million, ten thousand, twenty-one".