212810581274 has 16 divisors (see below), whose sum is σ = 332744116320. Its totient is φ = 101951893680.

The previous prime is 212810581253. The next prime is 212810581283. The reversal of 212810581274 is 472185018212.

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, 13996784 + ... + 14011979.

It is an arithmetic number, because the mean of its divisors is an integer number (20796507270).

Almost surely, 2^212810581274 is an apocalyptic number.

212810581274 is a deficient number, since it is larger than the sum of its proper divisors (119933535046).

212810581274 is a wasteful number, since it uses less digits than its factorization.

212810581274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28008925.

The product of its (nonzero) digits is 71680, while the sum is 41.

Adding to 212810581274 its reverse (472185018212), we get a palindrome (684995599486).

The spelling of 212810581274 in words is "two hundred twelve billion, eight hundred ten million, five hundred eighty-one thousand, two hundred seventy-four".