122231031121 has 4 divisors (see below), whose sum is σ = 122545250100. Its totient is φ = 121916812144.

The previous prime is 122231031107. The next prime is 122231031199. The reversal of 122231031121 is 121130132221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54896490000 + 67334541121 = 234300^2 + 259489^2 .

It is a cyclic number.

It is not a de Polignac number, because 122231031121 - 2⁷ = 122231030993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122231031821) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 157108906 + ... + 157109683.

It is an arithmetic number, because the mean of its divisors is an integer number (30636312525).

Almost surely, 2^122231031121 is an apocalyptic number.

It is an amenable number.

122231031121 is a deficient number, since it is larger than the sum of its proper divisors (314218979).

122231031121 is an equidigital number, since it uses as much as digits as its factorization.

122231031121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314218978.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 122231031121 its reverse (121130132221), we get a palindrome (243361163342).

The spelling of 122231031121 in words is "one hundred twenty-two billion, two hundred thirty-one million, thirty-one thousand, one hundred twenty-one".