22115142115 has 16 divisors (see below), whose sum is σ = 29162060640. Its totient is φ = 15966334720.

The previous prime is 22115142107. The next prime is 22115142157. The reversal of 22115142115 is 51124151122.

It is not a de Polignac number, because 22115142115 - 2³ = 22115142107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22115142115.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1459960 + ... + 1475029.

It is an arithmetic number, because the mean of its divisors is an integer number (1822628790).

Almost surely, 2^22115142115 is an apocalyptic number.

22115142115 is a deficient number, since it is larger than the sum of its proper divisors (7046918525).

22115142115 is a wasteful number, since it uses less digits than its factorization.

22115142115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935142.

The product of its digits is 800, while the sum is 25.

Adding to 22115142115 its reverse (51124151122), we get a palindrome (73239293237).

The spelling of 22115142115 in words is "twenty-two billion, one hundred fifteen million, one hundred forty-two thousand, one hundred fifteen".