211392634992 has 120 divisors (see below), whose sum is σ = 693007108992. Its totient is φ = 54907171200.

The previous prime is 211392634951. The next prime is 211392634997. The reversal of 211392634992 is 299436293112.

It is a super-2 number, since 2×211392634992² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211392634997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4059484 + ... + 4111227.

Almost surely, 2^211392634992 is an apocalyptic number.

211392634992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211392634992 is an abundant number, since it is smaller than the sum of its proper divisors (481614474000).

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

211392634992 is a wasteful number, since it uses less digits than its factorization.

211392634992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8170747 (or 8170734 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 51.

The spelling of 211392634992 in words is "two hundred eleven billion, three hundred ninety-two million, six hundred thirty-four thousand, nine hundred ninety-two".