222100221202212 has 12 divisors (see below), whose sum is σ = 518233849471856. Its totient is φ = 74033407067400.

The previous prime is 222100221202207. The next prime is 222100221202331. The reversal of 222100221202212 is 212202122001222.

It is a tau number, because it is divible by the number of its divisors (12).

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, 9254175883414 + ... + 9254175883437.

Almost surely, 2^{222100221202212} is an apocalyptic number.

It is an amenable number.

222100221202212 is an abundant number, since it is smaller than the sum of its proper divisors (296133628269644).

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

222100221202212 is a wasteful number, since it uses less digits than its factorization.

222100221202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18508351766858 (or 18508351766856 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 222100221202212 its reverse (212202122001222), we get a palindrome (434302343203434).

The spelling of 222100221202212 in words is "two hundred twenty-two trillion, one hundred billion, two hundred twenty-one million, two hundred two thousand, two hundred twelve".