222122122210 has 16 divisors (see below), whose sum is σ = 399859835256. Its totient is φ = 88839956608.

The previous prime is 222122122199. The next prime is 222122122249. The reversal of 222122122210 is 12221221222.

It can be written as a sum of positive squares in 4 ways, for example, as 183585683961 + 38536438249 = 428469^2 + 196307^2 .

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, 1006147 + ... + 1206886.

Almost surely, 2^222122122210 is an apocalyptic number.

222122122210 is a deficient number, since it is larger than the sum of its proper divisors (177737713046).

222122122210 is a wasteful number, since it uses less digits than its factorization.

222122122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223077.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222122122210 its reverse (12221221222), we get a palindrome (234343343432).

The spelling of 222122122210 in words is "two hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred ten".