122220200 has 24 divisors (see below), whose sum is σ = 284162430. Its totient is φ = 48888000.

The previous prime is 122220199. The next prime is 122220209. The reversal of 122220200 is 2022221.

It can be written as a sum of positive squares in 3 ways, for example, as 82555396 + 39664804 = 9086^2 + 6298^2 .

It is not an unprimeable number, because it can be changed into a prime (122220209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 305351 + ... + 305750.

Almost surely, 2^122220200 is an apocalyptic number.

122220200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122220200 is an abundant number, since it is smaller than the sum of its proper divisors (161942230).

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

122220200 is a wasteful number, since it uses less digits than its factorization.

122220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611117 (or 611108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 122220200 is about 11055.3245090318. The cubic root of 122220200 is about 496.2657806401.

Adding to 122220200 its reverse (2022221), we get a palindrome (124242421).

The spelling of 122220200 in words is "one hundred twenty-two million, two hundred twenty thousand, two hundred".