113322212221 has 4 divisors (see below), whose sum is σ = 119286539200. Its totient is φ = 107357885244.

The previous prime is 113322212219. The next prime is 113322212243. The reversal of 113322212221 is 122212223311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113322212221 - 2¹ = 113322212219 is a prime.

It is a super-2 number, since 2×113322212221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113322212192 and 113322212201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113322212251) 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, 2982163461 + ... + 2982163498.

It is an arithmetic number, because the mean of its divisors is an integer number (29821634800).

Almost surely, 2^113322212221 is an apocalyptic number.

It is an amenable number.

113322212221 is a deficient number, since it is larger than the sum of its proper divisors (5964326979).

113322212221 is an equidigital number, since it uses as much as digits as its factorization.

113322212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5964326978.

The product of its digits is 576, while the sum is 22.

Adding to 113322212221 its reverse (122212223311), we get a palindrome (235534435532).

The spelling of 113322212221 in words is "one hundred thirteen billion, three hundred twenty-two million, two hundred twelve thousand, two hundred twenty-one".