222120012212 has 24 divisors (see below), whose sum is σ = 444310769280. Its totient is φ = 95179131360.

The previous prime is 222120012203. The next prime is 222120012253. The reversal of 222120012212 is 212210021222.

It is a happy number.

It is a congruent number.

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, 451787 + ... + 805202.

It is an arithmetic number, because the mean of its divisors is an integer number (18512948720).

Almost surely, 2^222120012212 is an apocalyptic number.

It is an amenable number.

222120012212 is an abundant number, since it is smaller than the sum of its proper divisors (222190757068).

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

222120012212 is a wasteful number, since it uses less digits than its factorization.

222120012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263311 (or 1263309 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222120012212 its reverse (212210021222), we get a palindrome (434330033434).

The spelling of 222120012212 in words is "two hundred twenty-two billion, one hundred twenty million, twelve thousand, two hundred twelve".