222122222210 has 16 divisors (see below), whose sum is σ = 456937142976. Its totient is φ = 76156190448.

The previous prime is 222122222209. The next prime is 222122222219. The reversal of 222122222210 is 12222221222.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222122222219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1586587232 + ... + 1586587371.

It is an arithmetic number, because the mean of its divisors is an integer number (28558571436).

Almost surely, 2^222122222210 is an apocalyptic number.

222122222210 is an abundant number, since it is smaller than the sum of its proper divisors (234814920766).

222122222210 is a wasteful number, since it uses less digits than its factorization.

222122222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173174617.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222122222210 its reverse (12222221222), we get a palindrome (234344443432).

It can be divided in two parts, 22212 and 2222210, that added together give a palindrome (2244422).

The spelling of 222122222210 in words is "two hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred ten".