22212112222210 has 16 divisors (see below), whose sum is σ = 39989841864696. Its totient is φ = 8883058252288.

The previous prime is 22212112222163. The next prime is 22212112222231. The reversal of 22212112222210 is 1222221121222.

It can be written as a sum of positive squares in 4 ways, for example, as 19803398910201 + 2408713312009 = 4450101^2 + 1552003^2 .

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, 223277359 + ... + 223376818.

Almost surely, 2^{22212112222210} is an apocalyptic number.

22212112222210 is a deficient number, since it is larger than the sum of its proper divisors (17777729642486).

22212112222210 is a wasteful number, since it uses less digits than its factorization.

22212112222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446659157.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22212112222210 its reverse (1222221121222), we get a palindrome (23434333343432).

The spelling of 22212112222210 in words is "twenty-two trillion, two hundred twelve billion, one hundred twelve million, two hundred twenty-two thousand, two hundred ten".