122115307 has 2 divisors, whose sum is σ = 122115308. Its totient is φ = 122115306.

The previous prime is 122115271. The next prime is 122115319. The reversal of 122115307 is 703511221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122115307 - 2¹¹ = 122113259 is a prime.

It is not a weakly prime, because it can be changed into another prime (122115347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61057653 + 61057654.

It is an arithmetic number, because the mean of its divisors is an integer number (61057654).

Almost surely, 2^122115307 is an apocalyptic number.

122115307 is a deficient number, since it is larger than the sum of its proper divisors (1).

122115307 is an equidigital number, since it uses as much as digits as its factorization.

122115307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 122115307 is about 11050.5794870676. The cubic root of 122115307 is about 496.1237700033.

Adding to 122115307 its reverse (703511221), we get a palindrome (825626528).

The spelling of 122115307 in words is "one hundred twenty-two million, one hundred fifteen thousand, three hundred seven".