122112200 has 48 divisors (see below), whose sum is σ = 324473280. Its totient is φ = 41866560.

The previous prime is 122112197. The next prime is 122112209. The reversal of 122112200 is 2211221.

It is a happy number.

It is a super-2 number, since 2×122112200² = 29822778777680000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122112209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42212 + ... + 45011.

It is an arithmetic number, because the mean of its divisors is an integer number (6759860).

Almost surely, 2^122112200 is an apocalyptic number.

122112200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122112200 is an abundant number, since it is smaller than the sum of its proper divisors (202361080).

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

122112200 is a wasteful number, since it uses less digits than its factorization.

122112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87246 (or 87237 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 122112200 is about 11050.4389053105. The cubic root of 122112200 is about 496.1195623145.

Adding to 122112200 its reverse (2211221), we get a palindrome (124323421).

The spelling of 122112200 in words is "one hundred twenty-two million, one hundred twelve thousand, two hundred".