222111212210 has 32 divisors (see below), whose sum is σ = 402742065600. Its totient is φ = 88190942400.

The previous prime is 222111212207. The next prime is 222111212261. The reversal of 222111212210 is 12212111222.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13754321 + ... + 13770459.

It is an arithmetic number, because the mean of its divisors is an integer number (12585689550).

Almost surely, 2^222111212210 is an apocalyptic number.

222111212210 is a deficient number, since it is larger than the sum of its proper divisors (180630853390).

222111212210 is a wasteful number, since it uses less digits than its factorization.

222111212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26186.

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

Adding to 222111212210 its reverse (12212111222), we get a palindrome (234323323432).

It can be divided in two parts, 2221112 and 12210, that added together give a palindrome (2233322).

The spelling of 222111212210 in words is "two hundred twenty-two billion, one hundred eleven million, two hundred twelve thousand, two hundred ten".