22100121002100 has 72 divisors (see below), whose sum is σ = 66005694754048. Its totient is φ = 5703257030400.

The previous prime is 22100121002081. The next prime is 22100121002123. The reversal of 22100121002100 is 120012100122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 1188169249 + ... + 1188187848.

Almost surely, 2^{22100121002100} is an apocalyptic number.

22100121002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100121002100 is an abundant number, since it is smaller than the sum of its proper divisors (43905573751948).

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

22100121002100 is a wasteful number, since it uses less digits than its factorization.

22100121002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376357145 (or 2376357138 counting only the distinct ones).

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

Adding to 22100121002100 its reverse (120012100122), we get a palindrome (22220133102222).

The spelling of 22100121002100 in words is "twenty-two trillion, one hundred billion, one hundred twenty-one million, two thousand, one hundred".