28222194112 has 42 divisors (see below), whose sum is σ = 64011969512. Its totient is φ = 12093702144.

The previous prime is 28222194089. The next prime is 28222194113. The reversal of 28222194112 is 21149122282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28222194113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3551808 + ... + 3559744.

Almost surely, 2^28222194112 is an apocalyptic number.

It is an amenable number.

28222194112 is an abundant number, since it is smaller than the sum of its proper divisors (35789775400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28222194112 is an frugal number, since it uses more digits than its factorization.

28222194112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15893 (or 7946 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The spelling of 28222194112 in words is "twenty-eight billion, two hundred twenty-two million, one hundred ninety-four thousand, one hundred twelve".