22115556370 has 32 divisors (see below), whose sum is σ = 39944502000. Its totient is φ = 8815931136.

The previous prime is 22115556347. The next prime is 22115556389. The reversal of 22115556370 is 7365551122.

It is a Cunningham number, because it is equal to 148713²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 17809703209 + 4305853161 = 133453^2 + 65619^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7580152 + ... + 7583068.

Almost surely, 2^22115556370 is an apocalyptic number.

22115556370 is a deficient number, since it is larger than the sum of its proper divisors (17828945630).

22115556370 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (22115556369) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (5262).

22115556370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5262.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 22115556370 in words is "twenty-two billion, one hundred fifteen million, five hundred fifty-six thousand, three hundred seventy".