222121121122 has 16 divisors (see below), whose sum is σ = 335186812800. Its totient is φ = 110392716400.

The previous prime is 222121121113. The next prime is 222121121129. The reversal of 222121121122 is 221121121222.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 222121121122.

It is not an unprimeable number, because it can be changed into a prime (222121121129) 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, 709704 + ... + 973612.

It is an arithmetic number, because the mean of its divisors is an integer number (20949175800).

Almost surely, 2^222121121122 is an apocalyptic number.

222121121122 is a deficient number, since it is larger than the sum of its proper divisors (113065691678).

222121121122 is a wasteful number, since it uses less digits than its factorization.

222121121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266441.

The product of its digits is 128, while the sum is 19.

Adding to 222121121122 its reverse (221121121222), we get a palindrome (443242242344).

The spelling of 222121121122 in words is "two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty-two".