222221213222 has 4 divisors (see below), whose sum is σ = 333331819836. Its totient is φ = 111110606610.

The previous prime is 222221213191. The next prime is 222221213261. The reversal of 222221213222 is 222312122222.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555303304 + ... + 55555303307.

It is an arithmetic number, because the mean of its divisors is an integer number (83332954959).

Almost surely, 2^222221213222 is an apocalyptic number.

222221213222 is a deficient number, since it is larger than the sum of its proper divisors (111110606614).

222221213222 is a wasteful number, since it uses less digits than its factorization.

222221213222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111110606613.

The product of its digits is 1536, while the sum is 23.

Adding to 222221213222 its reverse (222312122222), we get a palindrome (444533335444).

The spelling of 222221213222 in words is "two hundred twenty-two billion, two hundred twenty-one million, two hundred thirteen thousand, two hundred twenty-two".