122200200 has 144 divisors (see below), whose sum is σ = 424721700. Its totient is φ = 31449600.

The previous prime is 122200189. The next prime is 122200217. The reversal of 122200200 is 2002221.

It can be written as a sum of positive squares in 6 ways, for example, as 54730404 + 67469796 = 7398^2 + 8214^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 51030 + ... + 53370.

Almost surely, 2^122200200 is an apocalyptic number.

122200200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122200200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212360850).

122200200 is an abundant number, since it is smaller than the sum of its proper divisors (302521500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122200200 is a wasteful number, since it uses less digits than its factorization.

122200200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392 (or 2380 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 122200200 is about 11054.4199305074. The cubic root of 122200200 is about 496.2387096730.

Adding to 122200200 its reverse (2002221), we get a palindrome (124202421).

The spelling of 122200200 in words is "one hundred twenty-two million, two hundred thousand, two hundred".