212370057 has 12 divisors (see below), whose sum is σ = 316652544. Its totient is φ = 137012760.

The previous prime is 212370031. The next prime is 212370061. The reversal of 212370057 is 750073212.

It is not a de Polignac number, because 212370057 - 2¹² = 212365961 is a prime.

It is a super-2 number, since 2×212370057² = 90202082220366498, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212370057.

It is not an unprimeable number, because it can be changed into a prime (212370157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 380313 + ... + 380870.

It is an arithmetic number, because the mean of its divisors is an integer number (26387712).

Almost surely, 2^212370057 is an apocalyptic number.

It is an amenable number.

212370057 is a deficient number, since it is larger than the sum of its proper divisors (104282487).

212370057 is a wasteful number, since it uses less digits than its factorization.

212370057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761220 (or 761217 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 212370057 is about 14572.9220474138. The cubic root of 212370057 is about 596.6199360355.

The spelling of 212370057 in words is "two hundred twelve million, three hundred seventy thousand, fifty-seven".