22012122122 has 16 divisors (see below), whose sum is σ = 33230829312. Its totient is φ = 10935220320.

The previous prime is 22012122113. The next prime is 22012122157. The reversal of 22012122122 is 22122121022.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22012122122.

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, 1337222 + ... + 1353582.

It is an arithmetic number, because the mean of its divisors is an integer number (2076926832).

Almost surely, 2^22012122122 is an apocalyptic number.

22012122122 is a deficient number, since it is larger than the sum of its proper divisors (11218707190).

22012122122 is a wasteful number, since it uses less digits than its factorization.

22012122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20653.

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

Adding to 22012122122 its reverse (22122121022), we get a palindrome (44134243144).

The spelling of 22012122122 in words is "twenty-two billion, twelve million, one hundred twenty-two thousand, one hundred twenty-two".