122342243251 has 2 divisors, whose sum is σ = 122342243252. Its totient is φ = 122342243250.

The previous prime is 122342243171. The next prime is 122342243263. The reversal of 122342243251 is 152342243221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122342243251 - 2²⁷ = 122208025523 is a prime.

It is a super-4 number, since 4×122342243251⁴ (a number of 45 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (122342243951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61171121625 + 61171121626.

It is an arithmetic number, because the mean of its divisors is an integer number (61171121626).

Almost surely, 2^122342243251 is an apocalyptic number.

122342243251 is a deficient number, since it is larger than the sum of its proper divisors (1).

122342243251 is an equidigital number, since it uses as much as digits as its factorization.

122342243251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 31.

Adding to 122342243251 its reverse (152342243221), we get a palindrome (274684486472).

The spelling of 122342243251 in words is "one hundred twenty-two billion, three hundred forty-two million, two hundred forty-three thousand, two hundred fifty-one".