222201012211212 has 24 divisors (see below), whose sum is σ = 518731013908800. Its totient is φ = 74029577582416.

The previous prime is 222201012211169. The next prime is 222201012211249. The reversal of 222201012211212 is 212112210102222.

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, 4678286262 + ... + 4678333757.

It is an arithmetic number, because the mean of its divisors is an integer number (21613792246200).

Almost surely, 2^{222201012211212} is an apocalyptic number.

It is an amenable number.

222201012211212 is an abundant number, since it is smaller than the sum of its proper divisors (296530001697588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222201012211212 is a wasteful number, since it uses less digits than its factorization.

222201012211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9356622005 (or 9356622003 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222201012211212 its reverse (212112210102222), we get a palindrome (434313222313434).

The spelling of 222201012211212 in words is "two hundred twenty-two trillion, two hundred one billion, twelve million, two hundred eleven thousand, two hundred twelve".