22112110021200 has 60 divisors (see below), whose sum is σ = 70832459105088. Its totient is φ = 5896562672000.

The previous prime is 22112110021129. The next prime is 22112110021283. The reversal of 22112110021200 is 212001121122.

It is a tau number, because it is divible by the number of its divisors (60).

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 22112110021200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9213377976 + ... + 9213380375.

Almost surely, 2^{22112110021200} is an apocalyptic number.

22112110021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112110021200 is an abundant number, since it is smaller than the sum of its proper divisors (48720349083888).

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

22112110021200 is a wasteful number, since it uses less digits than its factorization.

22112110021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18426758372 (or 18426758361 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22112110021200 its reverse (212001121122), we get a palindrome (22324111142322).

The spelling of 22112110021200 in words is "twenty-two trillion, one hundred twelve billion, one hundred ten million, twenty-one thousand, two hundred".