222101022021212 has 12 divisors (see below), whose sum is σ = 392525073572856. Its totient is φ = 109951001000400.

The previous prime is 222101022021211. The next prime is 222101022021217. The reversal of 222101022021212 is 212120220101222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222101022021211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274877502098 + ... + 274877502905.

It is an arithmetic number, because the mean of its divisors is an integer number (32710422797738).

Almost surely, 2^{222101022021212} is an apocalyptic number.

It is an amenable number.

222101022021212 is a deficient number, since it is larger than the sum of its proper divisors (170424051551644).

222101022021212 is a wasteful number, since it uses less digits than its factorization.

222101022021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549755005108 (or 549755005106 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222101022021212 its reverse (212120220101222), we get a palindrome (434221242122434).

The spelling of 222101022021212 in words is "two hundred twenty-two trillion, one hundred one billion, twenty-two million, twenty-one thousand, two hundred twelve".