113221401 has 4 divisors (see below), whose sum is σ = 150961872. Its totient is φ = 75480932.

The previous prime is 113221397. The next prime is 113221417. The reversal of 113221401 is 104122311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113221401 - 2² = 113221397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113221421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18870231 + ... + 18870236.

It is an arithmetic number, because the mean of its divisors is an integer number (37740468).

Almost surely, 2^113221401 is an apocalyptic number.

It is an amenable number.

113221401 is a deficient number, since it is larger than the sum of its proper divisors (37740471).

113221401 is an equidigital number, since it uses as much as digits as its factorization.

113221401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37740470.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 113221401 is about 10640.5545438196. The cubic root of 113221401 is about 483.7743538140.

Adding to 113221401 its reverse (104122311), we get a palindrome (217343712).

The spelling of 113221401 in words is "one hundred thirteen million, two hundred twenty-one thousand, four hundred one".