22000022122 has 16 divisors (see below), whose sum is σ = 35541795240. Its totient is φ = 10152914112.

The previous prime is 22000022117. The next prime is 22000022153. The reversal of 22000022122 is 22122000022.

It can be written as a sum of positive squares in 4 ways, for example, as 15923663721 + 6076358401 = 126189^2 + 77951^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302404 + ... + 368032.

Almost surely, 2^22000022122 is an apocalyptic number.

22000022122 is a deficient number, since it is larger than the sum of its proper divisors (13541773118).

22000022122 is a wasteful number, since it uses less digits than its factorization.

22000022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78537.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22000022122 its reverse (22122000022), we get a palindrome (44122022144).

The spelling of 22000022122 in words is "twenty-two billion, twenty-two thousand, one hundred twenty-two".