212215525242 has 32 divisors (see below), whose sum is σ = 494216214912. Its totient is φ = 59488987584.

The previous prime is 212215525237. The next prime is 212215525253. The reversal of 212215525242 is 242525512212.

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, 47665233 + ... + 47669684.

It is an arithmetic number, because the mean of its divisors is an integer number (15444256716).

Almost surely, 2^212215525242 is an apocalyptic number.

212215525242 is an abundant number, since it is smaller than the sum of its proper divisors (282000689670).

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

212215525242 is a wasteful number, since it uses less digits than its factorization.

212215525242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95334982.

The product of its digits is 32000, while the sum is 33.

The spelling of 212215525242 in words is "two hundred twelve billion, two hundred fifteen million, five hundred twenty-five thousand, two hundred forty-two".