122011507 has 2 divisors, whose sum is σ = 122011508. Its totient is φ = 122011506.

The previous prime is 122011423. The next prime is 122011541. The reversal of 122011507 is 705110221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122011507 is a prime.

It is a super-2 number, since 2×122011507² = 29773615680822098, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122011807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61005753 + 61005754.

It is an arithmetic number, because the mean of its divisors is an integer number (61005754).

Almost surely, 2^122011507 is an apocalyptic number.

122011507 is a deficient number, since it is larger than the sum of its proper divisors (1).

122011507 is an equidigital number, since it uses as much as digits as its factorization.

122011507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 122011507 is about 11045.8819023200. The cubic root of 122011507 is about 495.9831590601.

Adding to 122011507 its reverse (705110221), we get a palindrome (827121728).

The spelling of 122011507 in words is "one hundred twenty-two million, eleven thousand, five hundred seven".