10221913181680 has 40 divisors (see below), whose sum is σ = 23785160946912. Its totient is φ = 4085459844864.

The previous prime is 10221913181657. The next prime is 10221913181681. The reversal of 10221913181680 is 8618131912201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221913181681) 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, 51547732 + ... + 51745651.

Almost surely, 2^{10221913181680} is an apocalyptic number.

10221913181680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221913181680 is an abundant number, since it is smaller than the sum of its proper divisors (13563247765232).

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

10221913181680 is a wasteful number, since it uses less digits than its factorization.

10221913181680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103294633 (or 103294627 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 43.

The spelling of 10221913181680 in words is "ten trillion, two hundred twenty-one billion, nine hundred thirteen million, one hundred eighty-one thousand, six hundred eighty".