113222001 has 4 divisors (see below), whose sum is σ = 150962672. Its totient is φ = 75481332.

The previous prime is 113221957. The next prime is 113222009. The reversal of 113222001 is 100222311.

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 113222001 - 2⁶ = 113221937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113222009) 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, 18870331 + ... + 18870336.

It is an arithmetic number, because the mean of its divisors is an integer number (37740668).

Almost surely, 2^113222001 is an apocalyptic number.

It is an amenable number.

113222001 is a deficient number, since it is larger than the sum of its proper divisors (37740671).

113222001 is an equidigital number, since it uses as much as digits as its factorization.

113222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37740670.

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

The square root of 113222001 is about 10640.5827378015. The cubic root of 113222001 is about 483.7752083759.

Adding to 113222001 its reverse (100222311), we get a palindrome (213444312).

The spelling of 113222001 in words is "one hundred thirteen million, two hundred twenty-two thousand, one".