212555500502320 has 40 divisors (see below), whose sum is σ = 494218849960224. Its totient is φ = 85017501484032.

The previous prime is 212555500502311. The next prime is 212555500502407. The reversal of 212555500502320 is 23205005555212.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 212555500502320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71960644 + ... + 74856163.

Almost surely, 2^{212555500502320} is an apocalyptic number.

212555500502320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212555500502320 is an abundant number, since it is smaller than the sum of its proper divisors (281663349457904).

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

212555500502320 is a wasteful number, since it uses less digits than its factorization.

212555500502320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146834917 (or 146834911 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 37.

The spelling of 212555500502320 in words is "two hundred twelve trillion, five hundred fifty-five billion, five hundred million, five hundred two thousand, three hundred twenty".