18722001881210 has 16 divisors (see below), whose sum is σ = 33707527187976. Its totient is φ = 7487039907648.

The previous prime is 18722001881203. The next prime is 18722001881221. The reversal of 18722001881210 is 1218810022781.

18722001881210 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12263394659569 + 6458607221641 = 3501913^2 + 2541379^2 .

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, 220060949 + ... + 220146008.

Almost surely, 2^{18722001881210} is an apocalyptic number.

18722001881210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18722001881210 is a deficient number, since it is larger than the sum of its proper divisors (14985525306766).

18722001881210 is a wasteful number, since it uses less digits than its factorization.

18722001881210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440211217.

The product of its (nonzero) digits is 28672, while the sum is 41.

The spelling of 18722001881210 in words is "eighteen trillion, seven hundred twenty-two billion, one million, eight hundred eighty-one thousand, two hundred ten".