22112122200212 has 36 divisors (see below), whose sum is σ = 42536068452948. Its totient is φ = 10050441561600.

The previous prime is 22112122200197. The next prime is 22112122200227. The reversal of 22112122200212 is 21200222121122.

It is an interprime number because it is at equal distance from previous prime (22112122200197) and next prime (22112122200227).

It can be written as a sum of positive squares in 2 ways, for example, as 12539063430916 + 9573058769296 = 3541054^2 + 3094036^2 .

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, 8197412 + ... + 10555652.

Almost surely, 2^{22112122200212} is an apocalyptic number.

22112122200212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22112122200212 is a deficient number, since it is larger than the sum of its proper divisors (20423946252736).

22112122200212 is a wasteful number, since it uses less digits than its factorization.

22112122200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377640 (or 2377627 counting only the distinct ones).

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

Adding to 22112122200212 its reverse (21200222121122), we get a palindrome (43312344321334).

The spelling of 22112122200212 in words is "twenty-two trillion, one hundred twelve billion, one hundred twenty-two million, two hundred thousand, two hundred twelve".