113002222021 has 4 divisors (see below), whose sum is σ = 121694700652. Its totient is φ = 104309743392.

The previous prime is 113002221989. The next prime is 113002222097. The reversal of 113002222021 is 120222200311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120222200311 = 7817 ⋅15379583.

It can be written as a sum of positive squares in 2 ways, for example, as 19913160996 + 93089061025 = 141114^2 + 305105^2 .

It is a cyclic number.

It is not a de Polignac number, because 113002222021 - 2⁵ = 113002221989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113002221986 and 113002222004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113002622021) 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 3 ways as a sum of consecutive naturals, for example, 4346239296 + ... + 4346239321.

It is an arithmetic number, because the mean of its divisors is an integer number (30423675163).

Almost surely, 2^113002222021 is an apocalyptic number.

It is an amenable number.

113002222021 is a deficient number, since it is larger than the sum of its proper divisors (8692478631).

113002222021 is an equidigital number, since it uses as much as digits as its factorization.

113002222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8692478630.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 113002222021 its reverse (120222200311), we get a palindrome (233224422332).

The spelling of 113002222021 in words is "one hundred thirteen billion, two million, two hundred twenty-two thousand, twenty-one".