22112119978 has 8 divisors (see below), whose sum is σ = 35719578468. Its totient is φ = 10205593824.

The previous prime is 22112119961. The next prime is 22112120021. The reversal of 22112119978 is 87991121122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15473618449 + 6638501529 = 124393^2 + 81477^2 .

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, 425233051 + ... + 425233102.

Almost surely, 2^22112119978 is an apocalyptic number.

22112119978 is a deficient number, since it is larger than the sum of its proper divisors (13607458490).

22112119978 is a wasteful number, since it uses less digits than its factorization.

22112119978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850466168.

The product of its digits is 36288, while the sum is 43.

The spelling of 22112119978 in words is "twenty-two billion, one hundred twelve million, one hundred nineteen thousand, nine hundred seventy-eight".