122111120231 has 2 divisors, whose sum is σ = 122111120232. Its totient is φ = 122111120230.

The previous prime is 122111120203. The next prime is 122111120233. The reversal of 122111120231 is 132021111221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (132021111221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122111120231 - 2²⁶ = 122044011367 is a prime.

It is a super-2 number, since 2×122111120231² (a number of 23 digits) contains 22 as substring.

Together with 122111120233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122111120233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61055560115 + 61055560116.

It is an arithmetic number, because the mean of its divisors is an integer number (61055560116).

Almost surely, 2^122111120231 is an apocalyptic number.

122111120231 is a deficient number, since it is larger than the sum of its proper divisors (1).

122111120231 is an equidigital number, since it uses as much as digits as its factorization.

122111120231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 122111120231 its reverse (132021111221), we get a palindrome (254132231452).

The spelling of 122111120231 in words is "one hundred twenty-two billion, one hundred eleven million, one hundred twenty thousand, two hundred thirty-one".