222222012222 has 32 divisors (see below), whose sum is σ = 508095512064. Its totient is φ = 63472068000.

The previous prime is 222222012209. The next prime is 222222012223. The reversal of 222222012222 is 222210222222.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222012223) 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, 695029 + ... + 963072.

It is an arithmetic number, because the mean of its divisors is an integer number (15877984752).

Almost surely, 2^222222012222 is an apocalyptic number.

222222012222 is an abundant number, since it is smaller than the sum of its proper divisors (285873499842).

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

222222012222 is a wasteful number, since it uses less digits than its factorization.

222222012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661304.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 222222012222 its reverse (222210222222), we get a palindrome (444432234444).

The spelling of 222222012222 in words is "two hundred twenty-two billion, two hundred twenty-two million, twelve thousand, two hundred twenty-two".