122991098 has 8 divisors (see below), whose sum is σ = 184539540. Its totient is φ = 61477920.

The previous prime is 122991061. The next prime is 122991101. The reversal of 122991098 is 890199221.

It can be written as a sum of positive squares in 2 ways, for example, as 113912929 + 9078169 = 10673^2 + 3013^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3158 + ... + 15998.

Almost surely, 2^122991098 is an apocalyptic number.

122991098 is a deficient number, since it is larger than the sum of its proper divisors (61548442).

122991098 is a wasteful number, since it uses less digits than its factorization.

122991098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17632.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 122991098 is about 11090.1351659932. The cubic root of 122991098 is about 497.3069853854.

The spelling of 122991098 in words is "one hundred twenty-two million, nine hundred ninety-one thousand, ninety-eight".