2112200222100 has 36 divisors (see below), whose sum is σ = 6111299310144. Its totient is φ = 563253392480.

The previous prime is 2112200222059. The next prime is 2112200222107. The reversal of 2112200222100 is 12220022112.

It is a super-2 number, since 2×2112200222100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2112200222100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112200222107) 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, 3520333404 + ... + 3520334003.

Almost surely, 2^{2112200222100} is an apocalyptic number.

2112200222100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112200222100 is an abundant number, since it is smaller than the sum of its proper divisors (3999099088044).

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

2112200222100 is a wasteful number, since it uses less digits than its factorization.

2112200222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7040667424 (or 7040667417 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2112200222100 its reverse (12220022112), we get a palindrome (2124420244212).

The spelling of 2112200222100 in words is "two trillion, one hundred twelve billion, two hundred million, two hundred twenty-two thousand, one hundred".