122199967 has 4 divisors (see below), whose sum is σ = 125180496. Its totient is φ = 119219440.

The previous prime is 122199949. The next prime is 122199971. The reversal of 122199967 is 769991221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 769991221 = 127 ⋅6062923.

It is a cyclic number.

It is not a de Polignac number, because 122199967 - 2⁷ = 122199839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122199947) 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 in 3 ways as a sum of consecutive naturals, for example, 1490203 + ... + 1490284.

It is an arithmetic number, because the mean of its divisors is an integer number (31295124).

Almost surely, 2^122199967 is an apocalyptic number.

122199967 is a deficient number, since it is larger than the sum of its proper divisors (2980529).

122199967 is an equidigital number, since it uses as much as digits as its factorization.

122199967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980528.

The product of its digits is 122472, while the sum is 46.

The square root of 122199967 is about 11054.4093917314. The cubic root of 122199967 is about 496.2383942788.

The spelling of 122199967 in words is "one hundred twenty-two million, one hundred ninety-nine thousand, nine hundred sixty-seven".