22112112111100 has 36 divisors (see below), whose sum is σ = 52345399945608. Its totient is φ = 8040768040000.

The previous prime is 22112112111083. The next prime is 22112112111101. The reversal of 22112112111100 is 111121121122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112112111101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10050958951 + ... + 10050961150.

It is an arithmetic number, because the mean of its divisors is an integer number (1454038887378).

Almost surely, 2^{22112112111100} is an apocalyptic number.

22112112111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112112111100 is an abundant number, since it is smaller than the sum of its proper divisors (30233287834508).

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

22112112111100 is a wasteful number, since it uses less digits than its factorization.

22112112111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20101920126 (or 20101920119 counting only the distinct ones).

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

Adding to 22112112111100 its reverse (111121121122), we get a palindrome (22223233232222).

The spelling of 22112112111100 in words is "twenty-two trillion, one hundred twelve billion, one hundred twelve million, one hundred eleven thousand, one hundred".