122491198 has 16 divisors (see below), whose sum is σ = 187608960. Its totient is φ = 59963416.

The previous prime is 122491189. The next prime is 122491217. The reversal of 122491198 is 891194221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29061 + ... + 33007.

It is an arithmetic number, because the mean of its divisors is an integer number (11725560).

Almost surely, 2^122491198 is an apocalyptic number.

122491198 is a deficient number, since it is larger than the sum of its proper divisors (65117762).

122491198 is a wasteful number, since it uses less digits than its factorization.

122491198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4271.

The product of its digits is 10368, while the sum is 37.

The square root of 122491198 is about 11067.5741696182. The cubic root of 122491198 is about 496.6322987695.

The spelling of 122491198 in words is "one hundred twenty-two million, four hundred ninety-one thousand, one hundred ninety-eight".