22111111234 has 16 divisors (see below), whose sum is σ = 35780247288. Its totient is φ = 10208902912.

The previous prime is 22111111159. The next prime is 22111111247. The reversal of 22111111234 is 43211111122.

It can be written as a sum of positive squares in 4 ways, for example, as 22110203025 + 908209 = 148695^2 + 953^2 .

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, 6133357 + ... + 6136960.

Almost surely, 2^22111111234 is an apocalyptic number.

22111111234 is a deficient number, since it is larger than the sum of its proper divisors (13669136054).

22111111234 is a wasteful number, since it uses less digits than its factorization.

22111111234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12270389.

The product of its digits is 96, while the sum is 19.

Adding to 22111111234 its reverse (43211111122), we get a palindrome (65322222356).

The spelling of 22111111234 in words is "twenty-two billion, one hundred eleven million, one hundred eleven thousand, two hundred thirty-four".