22112201200212 has 36 divisors (see below), whose sum is σ = 56096516868756. Its totient is φ = 7344124583040.

The previous prime is 22112201200183. The next prime is 22112201200259. The reversal of 22112201200212 is 21200210221122.

It is a happy number.

22112201200212 is a `hidden beast` number, since 2 + 211 + 220 + 1 + 20 + 0 + 212 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8140499160336 + 13971702039876 = 2853156^2 + 3737874^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 1108704489 + ... + 1108724432.

Almost surely, 2^{22112201200212} is an apocalyptic number.

It is an amenable number.

22112201200212 is an abundant number, since it is smaller than the sum of its proper divisors (33984315668544).

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

22112201200212 is a wasteful number, since it uses less digits than its factorization.

22112201200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217429208 (or 2217429203 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22112201200212 its reverse (21200210221122), we get a palindrome (43312411421334).

The spelling of 22112201200212 in words is "twenty-two trillion, one hundred twelve billion, two hundred one million, two hundred thousand, two hundred twelve".