212745157274 has 32 divisors (see below), whose sum is σ = 355558896000. Its totient is φ = 94792711104.

The previous prime is 212745157267. The next prime is 212745157283. The reversal of 212745157274 is 472751547212.

It is a super-2 number, since 2×212745157274² (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 15 ways as a sum of consecutive naturals, for example, 10439507 + ... + 10459865.

It is an arithmetic number, because the mean of its divisors is an integer number (11111215500).

Almost surely, 2^212745157274 is an apocalyptic number.

212745157274 is a deficient number, since it is larger than the sum of its proper divisors (142813738726).

212745157274 is a wasteful number, since it uses less digits than its factorization.

212745157274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34262.

The product of its digits is 1097600, while the sum is 47.

The spelling of 212745157274 in words is "two hundred twelve billion, seven hundred forty-five million, one hundred fifty-seven thousand, two hundred seventy-four".