22021211022200 has 72 divisors (see below), whose sum is σ = 55440679136400. Its totient is φ = 8130908672640.

The previous prime is 22021211022157. The next prime is 22021211022289. The reversal of 22021211022200 is 222011212022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 325723760 + ... + 325791359.

It is an arithmetic number, because the mean of its divisors is an integer number (770009432450).

Almost surely, 2^{22021211022200} is an apocalyptic number.

22021211022200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021211022200 is an abundant number, since it is smaller than the sum of its proper divisors (33419468114200).

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

22021211022200 is a wasteful number, since it uses less digits than its factorization.

22021211022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651515161 (or 651515139 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22021211022200 its reverse (222011212022), we get a palindrome (22243222234222).

The spelling of 22021211022200 in words is "twenty-two trillion, twenty-one billion, two hundred eleven million, twenty-two thousand, two hundred".