222221102012212 has 12 divisors (see below), whose sum is σ = 390129378774436. Its totient is φ = 110755565219520.

The previous prime is 222221102012167. The next prime is 222221102012297. The reversal of 222221102012212 is 212210201122222.

It can be written as a sum of positive squares in 2 ways, for example, as 16056417646116 + 206164684366096 = 4007046^2 + 14358436^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88746445239 + ... + 88746447742.

Almost surely, 2^{222221102012212} is an apocalyptic number.

It is an amenable number.

222221102012212 is a deficient number, since it is larger than the sum of its proper divisors (167908276762224).

222221102012212 is a wasteful number, since it uses less digits than its factorization.

222221102012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177492893298 (or 177492893296 counting only the distinct ones).

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

Adding to 222221102012212 its reverse (212210201122222), we get a palindrome (434431303134434).

The spelling of 222221102012212 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred two million, twelve thousand, two hundred twelve".