212660224650 has 72 divisors (see below), whose sum is σ = 577237432044. Its totient is φ = 56124748800.

The previous prime is 212660224649. The next prime is 212660224669. The reversal of 212660224650 is 56422066212.

212660224650 is a `hidden beast` number, since 2 + 1 + 2 + 6 + 602 + 2 + 46 + 5 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 49608207441 + 163052017209 = 222729^2 + 403797^2 .

It is a super-2 number, since 2×212660224650² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2392321 + ... + 2479620.

Almost surely, 2^212660224650 is an apocalyptic number.

212660224650 is an abundant number, since it is smaller than the sum of its proper divisors (364577207394).

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

212660224650 is a wasteful number, since it uses less digits than its factorization.

212660224650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872056 (or 4872048 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 212660224650 in words is "two hundred twelve billion, six hundred sixty million, two hundred twenty-four thousand, six hundred fifty".