210939291212 has 12 divisors (see below), whose sum is σ = 397539433536. Its totient is φ = 97356595920.

The previous prime is 210939291197. The next prime is 210939291223. The reversal of 210939291212 is 212192939012.

It is a self number, because there is not a number n which added to its sum of digits gives 210939291212.

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, 2028262364 + ... + 2028262467.

It is an arithmetic number, because the mean of its divisors is an integer number (33128286128).

Almost surely, 2^210939291212 is an apocalyptic number.

It is an amenable number.

210939291212 is a deficient number, since it is larger than the sum of its proper divisors (186600142324).

210939291212 is a wasteful number, since it uses less digits than its factorization.

210939291212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4056524848 (or 4056524846 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The spelling of 210939291212 in words is "two hundred ten billion, nine hundred thirty-nine million, two hundred ninety-one thousand, two hundred twelve".