122015419 has 2 divisors, whose sum is σ = 122015420. Its totient is φ = 122015418.

The previous prime is 122015407. The next prime is 122015429. The reversal of 122015419 is 914510221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (914510221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122015419 - 2¹¹ = 122013371 is a prime.

It is a super-2 number, since 2×122015419² = 29775524947491122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122015393 and 122015402.

It is not a weakly prime, because it can be changed into another prime (122015429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61007709 + 61007710.

It is an arithmetic number, because the mean of its divisors is an integer number (61007710).

Almost surely, 2^122015419 is an apocalyptic number.

122015419 is a deficient number, since it is larger than the sum of its proper divisors (1).

122015419 is an equidigital number, since it uses as much as digits as its factorization.

122015419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 122015419 is about 11046.0589804690. The cubic root of 122015419 is about 495.9884598317.

The spelling of 122015419 in words is "one hundred twenty-two million, fifteen thousand, four hundred nineteen".