212181272496 has 80 divisors (see below), whose sum is σ = 609109452000. Its totient is φ = 70718890752.

The previous prime is 212181272483. The next prime is 212181272507. The reversal of 212181272496 is 694272181212.

212181272496 is a `hidden beast` number, since 2 + 12 + 1 + 81 + 2 + 72 + 496 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4554730 + ... + 4601078.

It is an arithmetic number, because the mean of its divisors is an integer number (7613868150).

Almost surely, 2^212181272496 is an apocalyptic number.

It is an amenable number.

212181272496 is an abundant number, since it is smaller than the sum of its proper divisors (396928179504).

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

212181272496 is a wasteful number, since it uses less digits than its factorization.

212181272496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56963 (or 56951 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The spelling of 212181272496 in words is "two hundred twelve billion, one hundred eighty-one million, two hundred seventy-two thousand, four hundred ninety-six".