222232121212 has 12 divisors (see below), whose sum is σ = 392915555200. Its totient is φ = 109970534016.

The previous prime is 222232121203. The next prime is 222232121231. The reversal of 222232121212 is 212121232222.

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 3 ways as a sum of consecutive naturals, for example, 286381212 + ... + 286381987.

Almost surely, 2^222232121212 is an apocalyptic number.

It is an amenable number.

222232121212 is a deficient number, since it is larger than the sum of its proper divisors (170683433988).

222232121212 is a wasteful number, since it uses less digits than its factorization.

222232121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572763300 (or 572763298 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

Adding to 222232121212 its reverse (212121232222), we get a palindrome (434353353434).

The spelling of 222232121212 in words is "two hundred twenty-two billion, two hundred thirty-two million, one hundred twenty-one thousand, two hundred twelve".