13120002221000 has 64 divisors (see below), whose sum is σ = 31221157968000. Its totient is φ = 5159051697600.

The previous prime is 13120002220991. The next prime is 13120002221021. The reversal of 13120002221000 is 12220002131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111127460 + ... + 111245459.

It is an arithmetic number, because the mean of its divisors is an integer number (487830593250).

Almost surely, 2^{13120002221000} is an apocalyptic number.

13120002221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13120002221000 is an abundant number, since it is smaller than the sum of its proper divisors (18101155747000).

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

13120002221000 is a wasteful number, since it uses less digits than its factorization.

13120002221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222372999 (or 222372985 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 13120002221000 its reverse (12220002131), we get a palindrome (13132222223131).

The spelling of 13120002221000 in words is "thirteen trillion, one hundred twenty billion, two million, two hundred twenty-one thousand".