113052221 has 2 divisors, whose sum is σ = 113052222. Its totient is φ = 113052220.

The previous prime is 113052217. The next prime is 113052281. The reversal of 113052221 is 122250311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98505625 + 14546596 = 9925^2 + 3814^2 .

It is a cyclic number.

It is not a de Polignac number, because 113052221 - 2² = 113052217 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 113052221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113052281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56526110 + 56526111.

It is an arithmetic number, because the mean of its divisors is an integer number (56526111).

Almost surely, 2^113052221 is an apocalyptic number.

It is an amenable number.

113052221 is a deficient number, since it is larger than the sum of its proper divisors (1).

113052221 is an equidigital number, since it uses as much as digits as its factorization.

113052221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 113052221 is about 10632.6017982430. The cubic root of 113052221 is about 483.5332752909.

The spelling of 113052221 in words is "one hundred thirteen million, fifty-two thousand, two hundred twenty-one".