22100100201021 has 32 divisors (see below), whose sum is σ = 30426287400448. Its totient is φ = 14257979043840.

The previous prime is 22100100201013. The next prime is 22100100201037. The reversal of 22100100201021 is 12010200100122.

It is not a de Polignac number, because 22100100201021 - 2³ = 22100100201013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22100100200988 and 22100100201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100100201521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106089756 + ... + 106297866.

It is an arithmetic number, because the mean of its divisors is an integer number (950821481264).

Almost surely, 2^{22100100201021} is an apocalyptic number.

It is an amenable number.

22100100201021 is a deficient number, since it is larger than the sum of its proper divisors (8326187199427).

22100100201021 is a wasteful number, since it uses less digits than its factorization.

22100100201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213301.

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

Adding to 22100100201021 its reverse (12010200100122), we get a palindrome (34110300301143).

The spelling of 22100100201021 in words is "twenty-two trillion, one hundred billion, one hundred million, two hundred one thousand, twenty-one".