222122012212 has 48 divisors (see below), whose sum is σ = 399928233600. Its totient is φ = 107906355200.

The previous prime is 222122012201. The next prime is 222122012219. The reversal of 222122012212 is 212210221222.

It is a self number, because there is not a number n which added to its sum of digits gives 222122012212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222122012219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9562212 + ... + 9585412.

It is an arithmetic number, because the mean of its divisors is an integer number (8331838200).

Almost surely, 2^222122012212 is an apocalyptic number.

It is an amenable number.

222122012212 is a deficient number, since it is larger than the sum of its proper divisors (177806221388).

222122012212 is a wasteful number, since it uses less digits than its factorization.

222122012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23736 (or 23734 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222122012212 its reverse (212210221222), we get a palindrome (434332233434).

The spelling of 222122012212 in words is "two hundred twenty-two billion, one hundred twenty-two million, twelve thousand, two hundred twelve".