122112212200 has 96 divisors (see below), whose sum is σ = 310144212000. Its totient is φ = 44343763200.

The previous prime is 122112212171. The next prime is 122112212207. The reversal of 122112212200 is 2212211221.

It is a happy number.

It is a super-2 number, since 2×122112212200² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122112212207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1588246 + ... + 1663354.

It is an arithmetic number, because the mean of its divisors is an integer number (3230668875).

Almost surely, 2^122112212200 is an apocalyptic number.

122112212200 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 122112212200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155072106000).

122112212200 is an abundant number, since it is smaller than the sum of its proper divisors (188031999800).

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

122112212200 is a wasteful number, since it uses less digits than its factorization.

122112212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75875 (or 75866 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122112212200 its reverse (2212211221), we get a palindrome (124324423421).

The spelling of 122112212200 in words is "one hundred twenty-two billion, one hundred twelve million, two hundred twelve thousand, two hundred".