22120121000100 has 72 divisors (see below), whose sum is σ = 64087022543040. Its totient is φ = 5890759844480.

The previous prime is 22120121000093. The next prime is 22120121000119. The reversal of 22120121000100 is 100012102122.

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

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, 49396035 + ... + 49841834.

It is an arithmetic number, because the mean of its divisors is an integer number (890097535320).

Almost surely, 2^{22120121000100} is an apocalyptic number.

22120121000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120121000100 is an abundant number, since it is smaller than the sum of its proper divisors (41966901542940).

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

22120121000100 is a wasteful number, since it uses less digits than its factorization.

22120121000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99238629 (or 99238622 counting only the distinct ones).

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

Adding to 22120121000100 its reverse (100012102122), we get a palindrome (22220133102222).

The spelling of 22120121000100 in words is "twenty-two trillion, one hundred twenty billion, one hundred twenty-one million, one hundred", and thus it is an aban number.