222212122210 has 16 divisors (see below), whose sum is σ = 430749652536. Its totient is φ = 82047552768.

The previous prime is 222212122199. The next prime is 222212122243. The reversal of 222212122210 is 12221212222.

It can be written as a sum of positive squares in 4 ways, for example, as 101787159681 + 120424962529 = 319041^2 + 347023^2 .

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, 854661879 + ... + 854662138.

Almost surely, 2^222212122210 is an apocalyptic number.

222212122210 is a deficient number, since it is larger than the sum of its proper divisors (208537530326).

222212122210 is a wasteful number, since it uses less digits than its factorization.

222212122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709324037.

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

Adding to 222212122210 its reverse (12221212222), we get a palindrome (234433334432).

The spelling of 222212122210 in words is "two hundred twenty-two billion, two hundred twelve million, one hundred twenty-two thousand, two hundred ten".