113044221 has 8 divisors (see below), whose sum is σ = 167472960. Its totient is φ = 75362796.

The previous prime is 113044219. The next prime is 113044229. The reversal of 113044221 is 122440311.

It is not a de Polignac number, because 113044221 - 2¹ = 113044219 is a prime.

It is a super-3 number, since 3×113044221³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113044194 and 113044203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113044229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2093385 + ... + 2093438.

It is an arithmetic number, because the mean of its divisors is an integer number (20934120).

Almost surely, 2^113044221 is an apocalyptic number.

It is an amenable number.

113044221 is a deficient number, since it is larger than the sum of its proper divisors (54428739).

113044221 is an equidigital number, since it uses as much as digits as its factorization.

113044221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4186832 (or 4186826 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 113044221 is about 10632.2255901575. The cubic root of 113044221 is about 483.5218694780.

Adding to 113044221 its reverse (122440311), we get a palindrome (235484532).

The spelling of 113044221 in words is "one hundred thirteen million, forty-four thousand, two hundred twenty-one".