22112121200222 has 12 divisors (see below), whose sum is σ = 33739882732536. Its totient is φ = 10868669739060.

The previous prime is 22112121200189. The next prime is 22112121200227. The reversal of 22112121200222 is 22200212121122.

It is a junction number, because it is equal to n+sod(n) for n = 22112121200194 and 22112121200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112121200227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1588051154 + ... + 1588065077.

It is an arithmetic number, because the mean of its divisors is an integer number (2811656894378).

Almost surely, 2^{22112121200222} is an apocalyptic number.

22112121200222 is a deficient number, since it is larger than the sum of its proper divisors (11627761532314).

22112121200222 is an equidigital number, since it uses as much as digits as its factorization.

22112121200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176116351 (or 3176116292 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22112121200222 its reverse (22200212121122), we get a palindrome (44312333321344).

The spelling of 22112121200222 in words is "twenty-two trillion, one hundred twelve billion, one hundred twenty-one million, two hundred thousand, two hundred twenty-two".