22222120010 has 16 divisors (see below), whose sum is σ = 42352746696. Its totient is φ = 8365974528.

The previous prime is 22222119973. The next prime is 22222120031. The reversal of 22222120010 is 1002122222.

It can be written as a sum of positive squares in 4 ways, for example, as 15121866841 + 7100253169 = 122971^2 + 84263^2 .

It is a Curzon 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, 65359007 + ... + 65359346.

Almost surely, 2^22222120010 is an apocalyptic number.

22222120010 is a deficient number, since it is larger than the sum of its proper divisors (20130626686).

22222120010 is a wasteful number, since it uses less digits than its factorization.

22222120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130718377.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22222120010 its reverse (1002122222), we get a palindrome (23224242232).

The spelling of 22222120010 in words is "twenty-two billion, two hundred twenty-two million, one hundred twenty thousand, ten".