122217399 has 12 divisors (see below), whose sum is σ = 177723000. Its totient is φ = 80930544.

The previous prime is 122217391. The next prime is 122217413. The reversal of 122217399 is 993712221.

It is not a de Polignac number, because 122217399 - 2³ = 122217391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122217391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44229 + ... + 46910.

It is an arithmetic number, because the mean of its divisors is an integer number (14810250).

Almost surely, 2^122217399 is an apocalyptic number.

122217399 is a deficient number, since it is larger than the sum of its proper divisors (55505601).

122217399 is a wasteful number, since it uses less digits than its factorization.

122217399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91294 (or 91291 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 122217399 is about 11055.1978272666. The cubic root of 122217399 is about 496.2619895290.

The spelling of 122217399 in words is "one hundred twenty-two million, two hundred seventeen thousand, three hundred ninety-nine".