113221355 has 16 divisors (see below), whose sum is σ = 149433984. Its totient is φ = 81828480.

The previous prime is 113221349. The next prime is 113221391. The reversal of 113221355 is 553122311.

It is a happy number.

It is not a de Polignac number, because 113221355 - 2¹⁸ = 112959211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113221355.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15476 + ... + 21585.

It is an arithmetic number, because the mean of its divisors is an integer number (9339624).

Almost surely, 2^113221355 is an apocalyptic number.

113221355 is a deficient number, since it is larger than the sum of its proper divisors (36212629).

113221355 is a wasteful number, since it uses less digits than its factorization.

113221355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37126.

The product of its digits is 900, while the sum is 23.

The square root of 113221355 is about 10640.5523822779. The cubic root of 113221355 is about 483.7742882975.

Adding to 113221355 its reverse (553122311), we get a palindrome (666343666).

The spelling of 113221355 in words is "one hundred thirteen million, two hundred twenty-one thousand, three hundred fifty-five".