122112222200 has 48 divisors (see below), whose sum is σ = 285098940000. Its totient is φ = 48640497920.

The previous prime is 122112222103. The next prime is 122112222259. The reversal of 122112222200 is 2222211221.

It is a happy number.

It is a super-2 number, since 2×122112222200² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1229525 + ... + 1325124.

It is an arithmetic number, because the mean of its divisors is an integer number (5939561250).

Almost surely, 2^122112222200 is an apocalyptic number.

122112222200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122112222200 is an abundant number, since it is smaller than the sum of its proper divisors (162986717800).

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

122112222200 is a wasteful number, since it uses less digits than its factorization.

122112222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554904 (or 2554895 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122112222200 its reverse (2222211221), we get a palindrome (124334433421).

The spelling of 122112222200 in words is "one hundred twenty-two billion, one hundred twelve million, two hundred twenty-two thousand, two hundred".