113021122242 has 128 divisors (see below), whose sum is σ = 273635573760. Its totient is φ = 30401110080.

The previous prime is 113021122199. The next prime is 113021122259. The reversal of 113021122242 is 242221120311.

It is a happy number.

It is a super-2 number, since 2×113021122242² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 119346013 + ... + 119346959.

It is an arithmetic number, because the mean of its divisors is an integer number (2137777920).

Almost surely, 2^113021122242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113021122242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136817786880).

113021122242 is an abundant number, since it is smaller than the sum of its proper divisors (160614451518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113021122242 is a wasteful number, since it uses less digits than its factorization.

113021122242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 113021122242 its reverse (242221120311), we get a palindrome (355242242553).

The spelling of 113021122242 in words is "one hundred thirteen billion, twenty-one million, one hundred twenty-two thousand, two hundred forty-two".