222201212122 has 16 divisors (see below), whose sum is σ = 350959724640. Its totient is φ = 105218494128.

The previous prime is 222201212117. The next prime is 222201212173. The reversal of 222201212122 is 221212102222.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 222201212122.

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, 847288 + ... + 1078099.

It is an arithmetic number, because the mean of its divisors is an integer number (21934982790).

Almost surely, 2^222201212122 is an apocalyptic number.

222201212122 is a deficient number, since it is larger than the sum of its proper divisors (128758512518).

222201212122 is a wasteful number, since it uses less digits than its factorization.

222201212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928445.

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

Adding to 222201212122 its reverse (221212102222), we get a palindrome (443413314344).

The spelling of 222201212122 in words is "two hundred twenty-two billion, two hundred one million, two hundred twelve thousand, one hundred twenty-two".