22012211222 has 16 divisors (see below), whose sum is σ = 33522540720. Its totient is φ = 10838143008.

The previous prime is 22012211191. The next prime is 22012211237. The reversal of 22012211222 is 22211221022.

It is a happy number.

22012211222 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 22012211222.

It is a congruent number.

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, 390188 + ... + 443024.

It is an arithmetic number, because the mean of its divisors is an integer number (2095158795).

Almost surely, 2^22012211222 is an apocalyptic number.

22012211222 is a deficient number, since it is larger than the sum of its proper divisors (11510329498).

22012211222 is a wasteful number, since it uses less digits than its factorization.

22012211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56015.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22012211222 its reverse (22211221022), we get a palindrome (44223432244).

The spelling of 22012211222 in words is "twenty-two billion, twelve million, two hundred eleven thousand, two hundred twenty-two".