21102201192 has 64 divisors (see below), whose sum is σ = 55549440000. Its totient is φ = 6661773504.

The previous prime is 21102201187. The next prime is 21102201217. The reversal of 21102201192 is 29110220112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2183523 + ... + 2193165.

It is an arithmetic number, because the mean of its divisors is an integer number (867960000).

Almost surely, 2^21102201192 is an apocalyptic number.

It is an amenable number.

21102201192 is an abundant number, since it is smaller than the sum of its proper divisors (34447238808).

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

21102201192 is a wasteful number, since it uses less digits than its factorization.

21102201192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14470 (or 14466 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 21102201192 in words is "twenty-one billion, one hundred two million, two hundred one thousand, one hundred ninety-two".