122782198 has 16 divisors (see below), whose sum is σ = 229618944. Its totient is φ = 47837160.

The previous prime is 122782171. The next prime is 122782223. The reversal of 122782198 is 891287221.

It is a super-2 number, since 2×122782198² = 30150936291422408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122782198.

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, 398490 + ... + 398797.

It is an arithmetic number, because the mean of its divisors is an integer number (14351184).

Almost surely, 2^122782198 is an apocalyptic number.

122782198 is a deficient number, since it is larger than the sum of its proper divisors (106836746).

122782198 is a wasteful number, since it uses less digits than its factorization.

122782198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797307.

The product of its digits is 32256, while the sum is 40.

The square root of 122782198 is about 11080.7128832039. The cubic root of 122782198 is about 497.0252677002.

The spelling of 122782198 in words is "one hundred twenty-two million, seven hundred eighty-two thousand, one hundred ninety-eight".