122317898 has 4 divisors (see below), whose sum is σ = 183476850. Its totient is φ = 61158948.

The previous prime is 122317889. The next prime is 122317903. The reversal of 122317898 is 898713221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 898713221 = 7 ⋅128387603.

It can be written as a sum of positive squares in only one way, i.e., 98863249 + 23454649 = 9943^2 + 4843^2 .

It is a super-2 number, since 2×122317898² = 29923336342276808, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30579473 + ... + 30579476.

Almost surely, 2^122317898 is an apocalyptic number.

122317898 is a deficient number, since it is larger than the sum of its proper divisors (61158952).

122317898 is an equidigital number, since it uses as much as digits as its factorization.

122317898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61158951.

The product of its digits is 48384, while the sum is 41.

The square root of 122317898 is about 11059.7422212274. The cubic root of 122317898 is about 496.3979771761.

The spelling of 122317898 in words is "one hundred twenty-two million, three hundred seventeen thousand, eight hundred ninety-eight".