8401220113 has 16 divisors (see below), whose sum is σ = 9872819712. Its totient is φ = 7047936000.

The previous prime is 8401220083. The next prime is 8401220119. The reversal of 8401220113 is 3110221048.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8401220113 - 2⁹ = 8401219601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8401220119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684753 + ... + 696913.

It is an arithmetic number, because the mean of its divisors is an integer number (617051232).

Almost surely, 2^8401220113 is an apocalyptic number.

It is an amenable number.

8401220113 is a deficient number, since it is larger than the sum of its proper divisors (1471599599).

8401220113 is a wasteful number, since it uses less digits than its factorization.

8401220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17016.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 8401220113 is about 91658.1699195440. The cubic root of 8401220113 is about 2032.8911309607.

The spelling of 8401220113 in words is "eight billion, four hundred one million, two hundred twenty thousand, one hundred thirteen".