22212221122 has 64 divisors (see below), whose sum is σ = 42430316544. Its totient is φ = 8483641920.

The previous prime is 22212221117. The next prime is 22212221147. The reversal of 22212221122 is 22112221222.

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 22212221122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2494963 + ... + 2503849.

It is an arithmetic number, because the mean of its divisors is an integer number (662973696).

Almost surely, 2^22212221122 is an apocalyptic number.

22212221122 is a deficient number, since it is larger than the sum of its proper divisors (20218095422).

22212221122 is a wasteful number, since it uses less digits than its factorization.

22212221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9383.

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

Adding to 22212221122 its reverse (22112221222), we get a palindrome (44324442344).

The spelling of 22212221122 in words is "twenty-two billion, two hundred twelve million, two hundred twenty-one thousand, one hundred twenty-two".