211605562012 has 12 divisors (see below), whose sum is σ = 398795097736. Its totient is φ = 97664105520.

The previous prime is 211605561989. The next prime is 211605562031. The reversal of 211605562012 is 210265506112.

It is a congruent number.

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, 2034668814 + ... + 2034668917.

Almost surely, 2^211605562012 is an apocalyptic number.

It is an amenable number.

211605562012 is a deficient number, since it is larger than the sum of its proper divisors (187189535724).

211605562012 is a wasteful number, since it uses less digits than its factorization.

211605562012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4069337748 (or 4069337746 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 211605562012 in words is "two hundred eleven billion, six hundred five million, five hundred sixty-two thousand, twelve".