122132221231 has 4 divisors (see below), whose sum is σ = 122446186200. Its totient is φ = 121818256264.

The previous prime is 122132221229. The next prime is 122132221247. The reversal of 122132221231 is 132122231221.

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

It is a cyclic number.

It is not a de Polignac number, because 122132221231 - 2¹ = 122132221229 is a prime.

It is a super-2 number, since 2×122132221231² (a number of 23 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 (122132221031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156981901 + ... + 156982678.

It is an arithmetic number, because the mean of its divisors is an integer number (30611546550).

Almost surely, 2^122132221231 is an apocalyptic number.

122132221231 is a deficient number, since it is larger than the sum of its proper divisors (313964969).

122132221231 is an equidigital number, since it uses as much as digits as its factorization.

122132221231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313964968.

The product of its digits is 576, while the sum is 22.

Adding to 122132221231 its reverse (132122231221), we get a palindrome (254254452452).

The spelling of 122132221231 in words is "one hundred twenty-two billion, one hundred thirty-two million, two hundred twenty-one thousand, two hundred thirty-one".