122130251 has 2 divisors, whose sum is σ = 122130252. Its totient is φ = 122130250.

The previous prime is 122130199. The next prime is 122130257. The reversal of 122130251 is 152031221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122130251 - 2¹⁸ = 121868107 is a prime.

It is not a weakly prime, because it can be changed into another prime (122130257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61065125 + 61065126.

It is an arithmetic number, because the mean of its divisors is an integer number (61065126).

Almost surely, 2^122130251 is an apocalyptic number.

122130251 is a deficient number, since it is larger than the sum of its proper divisors (1).

122130251 is an equidigital number, since it uses as much as digits as its factorization.

122130251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 122130251 is about 11051.2556300178. The cubic root of 122130251 is about 496.1440070819.

Adding to 122130251 its reverse (152031221), we get a palindrome (274161472).

The spelling of 122130251 in words is "one hundred twenty-two million, one hundred thirty thousand, two hundred fifty-one".