113022221 has 4 divisors (see below), whose sum is σ = 121716252. Its totient is φ = 104328192.

The previous prime is 113022197. The next prime is 113022227. The reversal of 113022221 is 122220311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9084196 + 103938025 = 3014^2 + 10195^2 .

It is a cyclic number.

It is not a de Polignac number, because 113022221 - 2¹⁰ = 113021197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 113022196 and 113022205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113022227) 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, 4346996 + ... + 4347021.

It is an arithmetic number, because the mean of its divisors is an integer number (30429063).

Almost surely, 2^113022221 is an apocalyptic number.

It is an amenable number.

113022221 is a deficient number, since it is larger than the sum of its proper divisors (8694031).

113022221 is an equidigital number, since it uses as much as digits as its factorization.

113022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8694030.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 113022221 is about 10631.1909492775. The cubic root of 113022221 is about 483.4905007176.

Adding to 113022221 its reverse (122220311), we get a palindrome (235242532).

The spelling of 113022221 in words is "one hundred thirteen million, twenty-two thousand, two hundred twenty-one".