222122111210 has 16 divisors (see below), whose sum is σ = 399832713000. Its totient is φ = 88845974976.

The previous prime is 222122111203. The next prime is 222122111213. The reversal of 222122111210 is 12111221222.

It can be written as a sum of positive squares in 4 ways, for example, as 162506540641 + 59615570569 = 403121^2 + 244163^2 .

It is not an unprimeable number, because it can be changed into a prime (222122111213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18185 + ... + 666764.

Almost surely, 2^222122111210 is an apocalyptic number.

222122111210 is a deficient number, since it is larger than the sum of its proper divisors (177710601790).

222122111210 is a wasteful number, since it uses less digits than its factorization.

222122111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717385.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222122111210 its reverse (12111221222), we get a palindrome (234233332432).

The spelling of 222122111210 in words is "two hundred twenty-two billion, one hundred twenty-two million, one hundred eleven thousand, two hundred ten".