22222121122 has 8 divisors (see below), whose sum is σ = 33353548956. Its totient is φ = 11104271472.

The previous prime is 22222121113. The next prime is 22222121143. The reversal of 22222121122 is 22112122222.

It can be written as a sum of positive squares in 2 ways, for example, as 16772581081 + 5449540041 = 129509^2 + 73821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 22222121122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3390453 + ... + 3397000.

Almost surely, 2^22222121122 is an apocalyptic number.

22222121122 is a deficient number, since it is larger than the sum of its proper divisors (11131427834).

22222121122 is a wasteful number, since it uses less digits than its factorization.

22222121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6789092.

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

Adding to 22222121122 its reverse (22112122222), we get a palindrome (44334243344).

The spelling of 22222121122 in words is "twenty-two billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty-two".