212122211112202 has 16 divisors (see below), whose sum is σ = 321340243887432. Its totient is φ = 105008839603200.

The previous prime is 212122211112169. The next prime is 212122211112283. The reversal of 212122211112202 is 202211112221212.

It can be written as a sum of positive squares in 4 ways, for example, as 176762050545721 + 35360160566481 = 13295189^2 + 5946441^2 .

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, 894543 + ... + 20616610.

Almost surely, 2^{212122211112202} is an apocalyptic number.

212122211112202 is a deficient number, since it is larger than the sum of its proper divisors (109218032775230).

212122211112202 is a wasteful number, since it uses less digits than its factorization.

212122211112202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21560073.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 212122211112202 its reverse (202211112221212), we get a palindrome (414333323333414).

The spelling of 212122211112202 in words is "two hundred twelve trillion, one hundred twenty-two billion, two hundred eleven million, one hundred twelve thousand, two hundred two".