222112001200100 has 144 divisors (see below), whose sum is σ = 556873974034560. Its totient is φ = 75997156915200.

The previous prime is 222112001200079. The next prime is 222112001200129. The reversal of 222112001200100 is 1002100211222.

It is a super-2 number, since 2×222112001200100² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70395146 + ... + 73482654.

It is an arithmetic number, because the mean of its divisors is an integer number (3867180375240).

Almost surely, 2^{222112001200100} is an apocalyptic number.

222112001200100 is a gapful number since it is divisible by the number (20) 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 222112001200100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278436987017280).

222112001200100 is an abundant number, since it is smaller than the sum of its proper divisors (334761972834460).

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

222112001200100 is a wasteful number, since it uses less digits than its factorization.

222112001200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091398 (or 3091391 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 222112001200100 its reverse (1002100211222), we get a palindrome (223114101411322).

The spelling of 222112001200100 in words is "two hundred twenty-two trillion, one hundred twelve billion, one million, two hundred thousand, one hundred".