22100011212100 has 72 divisors (see below), whose sum is σ = 50377966228800. Its totient is φ = 8398906961280.

The previous prime is 22100011211981. The next prime is 22100011212119. The reversal of 22100011212100 is 121211000122.

It is a super-2 number, since 2×22100011212100² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31901262 + ... + 32586661.

It is an arithmetic number, because the mean of its divisors is an integer number (699693975400).

Almost surely, 2^{22100011212100} is an apocalyptic number.

22100011212100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100011212100 is an abundant number, since it is smaller than the sum of its proper divisors (28277955016700).

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

22100011212100 is a wasteful number, since it uses less digits than its factorization.

22100011212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64488109 (or 64488102 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22100011212100 its reverse (121211000122), we get a palindrome (22221222212222).

The spelling of 22100011212100 in words is "twenty-two trillion, one hundred billion, eleven million, two hundred twelve thousand, one hundred".