22012100111100 has 144 divisors (see below), whose sum is σ = 73565145029376. Its totient is φ = 5022368640000.

The previous prime is 22012100111047. The next prime is 22012100111129. The reversal of 22012100111100 is 111100121022.

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 47 ways as a sum of consecutive naturals, for example, 196130176 + ... + 196242375.

It is an arithmetic number, because the mean of its divisors is an integer number (510869062704).

Almost surely, 2^{22012100111100} is an apocalyptic number.

22012100111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012100111100 is an abundant number, since it is smaller than the sum of its proper divisors (51553044918276).

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

22012100111100 is a wasteful number, since it uses less digits than its factorization.

22012100111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392372596 (or 392372589 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 22012100111100 its reverse (111100121022), we get a palindrome (22123200232122).

The spelling of 22012100111100 in words is "twenty-two trillion, twelve billion, one hundred million, one hundred eleven thousand, one hundred".