122215007 has 2 divisors, whose sum is σ = 122215008. Its totient is φ = 122215006.

The previous prime is 122215003. The next prime is 122215061. The reversal of 122215007 is 700512221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122215007 - 2² = 122215003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122215007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122215003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61107503 + 61107504.

It is an arithmetic number, because the mean of its divisors is an integer number (61107504).

Almost surely, 2^122215007 is an apocalyptic number.

122215007 is a deficient number, since it is larger than the sum of its proper divisors (1).

122215007 is an equidigital number, since it uses as much as digits as its factorization.

122215007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 122215007 is about 11055.0896423322. The cubic root of 122215007 is about 496.2587519474.

Adding to 122215007 its reverse (700512221), we get a palindrome (822727228).

The spelling of 122215007 in words is "one hundred twenty-two million, two hundred fifteen thousand, seven".