22120012210212 has 144 divisors (see below), whose sum is σ = 69311487877632. Its totient is φ = 5803159541760.

The previous prime is 22120012210157. The next prime is 22120012210217. The reversal of 22120012210212 is 21201221002122.

It is a happy number.

22120012210212 is a `hidden beast` number, since 221 + 20 + 0 + 1 + 2 + 210 + 212 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (22120012210217) 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 47 ways as a sum of consecutive naturals, for example, 62792668 + ... + 63143955.

It is an arithmetic number, because the mean of its divisors is an integer number (481329776928).

Almost surely, 2^{22120012210212} is an apocalyptic number.

It is an amenable number.

22120012210212 is an abundant number, since it is smaller than the sum of its proper divisors (47191475667420).

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

22120012210212 is a wasteful number, since it uses less digits than its factorization.

22120012210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125936698 (or 125936693 counting only the distinct ones).

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

Adding to 22120012210212 its reverse (21201221002122), we get a palindrome (43321233212334).

The spelling of 22120012210212 in words is "twenty-two trillion, one hundred twenty billion, twelve million, two hundred ten thousand, two hundred twelve".