222202201111212 has 72 divisors (see below), whose sum is σ = 603195503124144. Its totient is φ = 63478422862848.

The previous prime is 222202201111211. The next prime is 222202201111277. The reversal of 222202201111212 is 212111102202222.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (222202201111211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18854353 + ... + 28282344.

Almost surely, 2^{222202201111212} is an apocalyptic number.

It is an amenable number.

222202201111212 is an abundant number, since it is smaller than the sum of its proper divisors (380993302012932).

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

222202201111212 is a wasteful number, since it uses less digits than its factorization.

222202201111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47144735 (or 47144726 counting only the distinct ones).

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

Adding to 222202201111212 its reverse (212111102202222), we get a palindrome (434313303313434).

The spelling of 222202201111212 in words is "two hundred twenty-two trillion, two hundred two billion, two hundred one million, one hundred eleven thousand, two hundred twelve".