23122222138 has 32 divisors (see below), whose sum is σ = 38678477184. Its totient is φ = 10310648832.

The previous prime is 23122222127. The next prime is 23122222139. The reversal of 23122222138 is 83122222132.

It is a super-3 number, since 3×23122222138³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (23122222139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54495 + ... + 221842.

It is an arithmetic number, because the mean of its divisors is an integer number (1208702412).

Almost surely, 2^23122222138 is an apocalyptic number.

23122222138 is a deficient number, since it is larger than the sum of its proper divisors (15556255046).

23122222138 is a wasteful number, since it uses less digits than its factorization.

23122222138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276486.

The product of its digits is 4608, while the sum is 28.

The spelling of 23122222138 in words is "twenty-three billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred thirty-eight".