21202022112200 has 48 divisors (see below), whose sum is σ = 49392703039680. Its totient is φ = 8463948349760.

The previous prime is 21202022112191. The next prime is 21202022112241. The reversal of 21202022112200 is 221122020212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105277244 + ... + 105478443.

It is an arithmetic number, because the mean of its divisors is an integer number (1029014646660).

Almost surely, 2^{21202022112200} is an apocalyptic number.

21202022112200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21202022112200 is an abundant number, since it is smaller than the sum of its proper divisors (28190680927480).

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

21202022112200 is a wasteful number, since it uses less digits than its factorization.

21202022112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210756206 (or 210756197 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21202022112200 its reverse (221122020212), we get a palindrome (21423144132412).

The spelling of 21202022112200 in words is "twenty-one trillion, two hundred two billion, twenty-two million, one hundred twelve thousand, two hundred".