12222797790 has 64 divisors (see below), whose sum is σ = 33650173440. Its totient is φ = 2783383680.

The previous prime is 12222797789. The next prime is 12222797801. The reversal of 12222797790 is 9779722221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51696 + ... + 164675.

It is an arithmetic number, because the mean of its divisors is an integer number (525783960).

Almost surely, 2^12222797790 is an apocalyptic number.

12222797790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222797790 is an abundant number, since it is smaller than the sum of its proper divisors (21427375650).

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

12222797790 is a wasteful number, since it uses less digits than its factorization.

12222797790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216657.

The product of its (nonzero) digits is 444528, while the sum is 48.

The spelling of 12222797790 in words is "twelve billion, two hundred twenty-two million, seven hundred ninety-seven thousand, seven hundred ninety".