212222213222 has 16 divisors (see below), whose sum is σ = 326840421600. Its totient is φ = 103287197760.

The previous prime is 212222213213. The next prime is 212222213243. The reversal of 212222213222 is 222312222212.

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, 2911697 + ... + 2983692.

It is an arithmetic number, because the mean of its divisors is an integer number (20427526350).

Almost surely, 2^212222213222 is an apocalyptic number.

212222213222 is a deficient number, since it is larger than the sum of its proper divisors (114618208378).

212222213222 is a wasteful number, since it uses less digits than its factorization.

212222213222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5895871.

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

Adding to 212222213222 its reverse (222312222212), we get a palindrome (434534435434).

The spelling of 212222213222 in words is "two hundred twelve billion, two hundred twenty-two million, two hundred thirteen thousand, two hundred twenty-two".