12228900940 has 24 divisors (see below), whose sum is σ = 26165235600. Its totient is φ = 4799266368.

The previous prime is 12228900917. The next prime is 12228900941. The reversal of 12228900940 is 4900982221.

It is a self number, because there is not a number n which added to its sum of digits gives 12228900940.

It is not an unprimeable number, because it can be changed into a prime (12228900941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5767290 + ... + 5769409.

It is an arithmetic number, because the mean of its divisors is an integer number (1090218150).

Almost surely, 2^12228900940 is an apocalyptic number.

12228900940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12228900940 is an abundant number, since it is smaller than the sum of its proper divisors (13936334660).

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

12228900940 is a wasteful number, since it uses less digits than its factorization.

12228900940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11536761 (or 11536759 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 12228900940 in words is "twelve billion, two hundred twenty-eight million, nine hundred thousand, nine hundred forty".