113222121 has 32 divisors (see below), whose sum is σ = 163468800. Its totient is φ = 69488640.

The previous prime is 113222113. The next prime is 113222129. The reversal of 113222121 is 121222311.

It is an interprime number because it is at equal distance from previous prime (113222113) and next prime (113222129).

It is not a de Polignac number, because 113222121 - 2³ = 113222113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113222121.

It is not an unprimeable number, because it can be changed into a prime (113222129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440425 + ... + 440681.

It is an arithmetic number, because the mean of its divisors is an integer number (5108400).

Almost surely, 2^113222121 is an apocalyptic number.

It is an amenable number.

113222121 is a deficient number, since it is larger than the sum of its proper divisors (50246679).

113222121 is a wasteful number, since it uses less digits than its factorization.

113222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469.

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

The square root of 113222121 is about 10640.5883765890. The cubic root of 113222121 is about 483.7753792880.

Adding to 113222121 its reverse (121222311), we get a palindrome (234444432).

The spelling of 113222121 in words is "one hundred thirteen million, two hundred twenty-two thousand, one hundred twenty-one".