22111012111100 has 36 divisors (see below), whose sum is σ = 52342795945608. Its totient is φ = 8040368040000.

The previous prime is 22111012111081. The next prime is 22111012111109. The reversal of 22111012111100 is 111121011122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111012111109) 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, 10050458951 + ... + 10050461150.

Almost surely, 2^{22111012111100} is an apocalyptic number.

22111012111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111012111100 is an abundant number, since it is smaller than the sum of its proper divisors (30231783834508).

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

22111012111100 is a wasteful number, since it uses less digits than its factorization.

22111012111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20100920126 (or 20100920119 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 22111012111100 its reverse (111121011122), we get a palindrome (22222133122222).

The spelling of 22111012111100 in words is "twenty-two trillion, one hundred eleven billion, twelve million, one hundred eleven thousand, one hundred".