22100012122 has 8 divisors (see below), whose sum is σ = 33181031700. Its totient is φ = 11039668224.

The previous prime is 22100012111. The next prime is 22100012161. The reversal of 22100012122 is 22121000122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21903704001 + 196308121 = 147999^2 + 14011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5166247 + ... + 5170522.

Almost surely, 2^22100012122 is an apocalyptic number.

22100012122 is a deficient number, since it is larger than the sum of its proper divisors (11081019578).

22100012122 is a wasteful number, since it uses less digits than its factorization.

22100012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10337840.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22100012122 its reverse (22121000122), we get a palindrome (44221012244).

The spelling of 22100012122 in words is "twenty-two billion, one hundred million, twelve thousand, one hundred twenty-two".