122221123231 has 24 divisors (see below), whose sum is σ = 125955923184. Its totient is φ = 118584000000.

The previous prime is 122221123151. The next prime is 122221123253. The reversal of 122221123231 is 132321122221.

It is not a de Polignac number, because 122221123231 - 2⁷ = 122221123103 is a prime.

It is a super-2 number, since 2×122221123231² (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 (122221193231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150703816 + ... + 150704626.

It is an arithmetic number, because the mean of its divisors is an integer number (5248163466).

Almost surely, 2^122221123231 is an apocalyptic number.

122221123231 is a deficient number, since it is larger than the sum of its proper divisors (3734799953).

122221123231 is an equidigital number, since it uses as much as digits as its factorization.

122221123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435 (or 1374 counting only the distinct ones).

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

Adding to 122221123231 its reverse (132321122221), we get a palindrome (254542245452).

It can be divided in two parts, 122221 and 123231, that multiplied together give a palindrome (15061416051).

The spelling of 122221123231 in words is "one hundred twenty-two billion, two hundred twenty-one million, one hundred twenty-three thousand, two hundred thirty-one".