22012702640 has 40 divisors (see below), whose sum is σ = 51280177680. Its totient is φ = 8787766016.

The previous prime is 22012702519. The next prime is 22012702693. The reversal of 22012702640 is 4620721022.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229574 + ... + 311013.

It is an arithmetic number, because the mean of its divisors is an integer number (1282004442).

Almost surely, 2^22012702640 is an apocalyptic number.

22012702640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012702640 is an abundant number, since it is smaller than the sum of its proper divisors (29267475040).

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

22012702640 is a wasteful number, since it uses less digits than its factorization.

22012702640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541109 (or 541103 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The spelling of 22012702640 in words is "twenty-two billion, twelve million, seven hundred two thousand, six hundred forty".