201220113 has 8 divisors (see below), whose sum is σ = 274002048. Its totient is φ = 131292464.

The previous prime is 201220073. The next prime is 201220199. The reversal of 201220113 is 311022102.

201220113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201220113 - 2⁸ = 201219857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201221113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713406 + ... + 713687.

It is an arithmetic number, because the mean of its divisors is an integer number (34250256).

Almost surely, 2^201220113 is an apocalyptic number.

It is an amenable number.

201220113 is a deficient number, since it is larger than the sum of its proper divisors (72781935).

201220113 is a wasteful number, since it uses less digits than its factorization.

201220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427143.

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

The square root of 201220113 is about 14185.2075416611. The cubic root of 201220113 is about 585.9903482046.

Adding to 201220113 its reverse (311022102), we get a palindrome (512242215).

The spelling of 201220113 in words is "two hundred one million, two hundred twenty thousand, one hundred thirteen".