115222443121 has 8 divisors (see below), whose sum is σ = 117678847104. Its totient is φ = 112766241840.

The previous prime is 115222443103. The next prime is 115222443139. The reversal of 115222443121 is 121344222511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115222443103) and next prime (115222443139).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115222443121 - 2⁹ = 115222442609 is a prime.

It is a super-2 number, since 2×115222443121² (a number of 23 digits) contains 22 as substring.

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 115222443121.

It is not an unprimeable number, because it can be changed into a prime (115222443101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1847971 + ... + 1909303.

It is an arithmetic number, because the mean of its divisors is an integer number (14709855888).

Almost surely, 2^115222443121 is an apocalyptic number.

It is an amenable number.

115222443121 is a deficient number, since it is larger than the sum of its proper divisors (2456403983).

115222443121 is an equidigital number, since it uses as much as digits as its factorization.

115222443121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101351.

The product of its digits is 3840, while the sum is 28.

Adding to 115222443121 its reverse (121344222511), we get a palindrome (236566665632).

The spelling of 115222443121 in words is "one hundred fifteen billion, two hundred twenty-two million, four hundred forty-three thousand, one hundred twenty-one".