21210200192 has 32 divisors (see below), whose sum is σ = 42278490000. Its totient is φ = 10599128320.

The previous prime is 21210200189. The next prime is 21210200201. The reversal of 21210200192 is 29100201212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186059 + ... + 277557.

Almost surely, 2^21210200192 is an apocalyptic number.

It is an amenable number.

21210200192 is a deficient number, since it is larger than the sum of its proper divisors (21068289808).

21210200192 is an equidigital number, since it uses as much as digits as its factorization.

21210200192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93324 (or 93312 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 21210200192 in words is "twenty-one billion, two hundred ten million, two hundred thousand, one hundred ninety-two".