113312022212221 has 12 divisors (see below), whose sum is σ = 133091671825632. Its totient is φ = 96181633274328.

The previous prime is 113312022212183. The next prime is 113312022212237. The reversal of 113312022212221 is 122212220213311.

It is a de Polignac number, because none of the positive numbers 2^k-113312022212221 is a prime.

It is a super-2 number, since 2×113312022212221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113312022612221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11225675775 + ... + 11225685868.

It is an arithmetic number, because the mean of its divisors is an integer number (11090972652136).

Almost surely, 2^{113312022212221} is an apocalyptic number.

It is an amenable number.

113312022212221 is a deficient number, since it is larger than the sum of its proper divisors (19779649613411).

113312022212221 is a wasteful number, since it uses less digits than its factorization.

113312022212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22451361760 (or 22451361753 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 113312022212221 its reverse (122212220213311), we get a palindrome (235524242425532).

The spelling of 113312022212221 in words is "one hundred thirteen trillion, three hundred twelve billion, twenty-two million, two hundred twelve thousand, two hundred twenty-one".