22212100011100 has 72 divisors (see below), whose sum is σ = 51201807093360. Its totient is φ = 8334963717120.

The previous prime is 22212100011097. The next prime is 22212100011109. The reversal of 22212100011100 is 111000121222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212100011109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20758135 + ... + 21801934.

It is an arithmetic number, because the mean of its divisors is an integer number (711136209630).

Almost surely, 2^{22212100011100} is an apocalyptic number.

22212100011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212100011100 is an abundant number, since it is smaller than the sum of its proper divisors (28989707082260).

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

22212100011100 is a wasteful number, since it uses less digits than its factorization.

22212100011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42560407 (or 42560400 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22212100011100 its reverse (111000121222), we get a palindrome (22323100132322).

The spelling of 22212100011100 in words is "twenty-two trillion, two hundred twelve billion, one hundred million, eleven thousand, one hundred".