222100102210212 has 18 divisors (see below), whose sum is σ = 561419702809238. Its totient is φ = 74033367403392.

The previous prime is 222100102210111. The next prime is 222100102210237. The reversal of 222100102210212 is 212012201001222.

It is a happy number.

222100102210212 is a `hidden beast` number, since 2 + 221 + 0 + 0 + 10 + 221 + 0 + 212 = 666.

It can be written as a sum of positive squares in only one way, i.e., 185995698624576 + 36104403585636 = 13638024^2 + 6008694^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3084723641773 + ... + 3084723641844.

Almost surely, 2^{222100102210212} is an apocalyptic number.

It is an amenable number.

222100102210212 is an abundant number, since it is smaller than the sum of its proper divisors (339319600599026).

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

222100102210212 is a wasteful number, since it uses less digits than its factorization.

222100102210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6169447283627 (or 6169447283622 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222100102210212 its reverse (212012201001222), we get a palindrome (434112303211434).

The spelling of 222100102210212 in words is "two hundred twenty-two trillion, one hundred billion, one hundred two million, two hundred ten thousand, two hundred twelve".