113002221 has 4 divisors (see below), whose sum is σ = 150669632. Its totient is φ = 75334812.

The previous prime is 113002207. The next prime is 113002229. The reversal of 113002221 is 122200311.

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 not a de Polignac number, because 113002221 - 2⁶ = 113002157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113002197 and 113002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113002229) 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, 18833701 + ... + 18833706.

It is an arithmetic number, because the mean of its divisors is an integer number (37667408).

Almost surely, 2^113002221 is an apocalyptic number.

It is an amenable number.

113002221 is a deficient number, since it is larger than the sum of its proper divisors (37667411).

113002221 is an equidigital number, since it uses as much as digits as its factorization.

113002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37667410.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 113002221 is about 10630.2502792738. The cubic root of 113002221 is about 483.4619801300.

Adding to 113002221 its reverse (122200311), we get a palindrome (235202532).

The spelling of 113002221 in words is "one hundred thirteen million, two thousand, two hundred twenty-one".