210021321112 has 8 divisors (see below), whose sum is σ = 393789977100. Its totient is φ = 105010660552.

The previous prime is 210021321091. The next prime is 210021321217. The reversal of 210021321112 is 211123120012.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13126332562 + ... + 13126332577.

Almost surely, 2^210021321112 is an apocalyptic number.

It is an amenable number.

210021321112 is a deficient number, since it is larger than the sum of its proper divisors (183768655988).

210021321112 is a wasteful number, since it uses less digits than its factorization.

210021321112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26252665145 (or 26252665141 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 210021321112 its reverse (211123120012), we get a palindrome (421144441124).

The spelling of 210021321112 in words is "two hundred ten billion, twenty-one million, three hundred twenty-one thousand, one hundred twelve".