22210212221100 has 108 divisors (see below), whose sum is σ = 69624998541280. Its totient is φ = 5922015235200.

The previous prime is 22210212221089. The next prime is 22210212221101. The reversal of 22210212221100 is 112221201222.

It is a happy number.

22210212221100 is a `hidden beast` number, since 2 + 221 + 0 + 212 + 221 + 10 + 0 = 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 (22210212221101) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 6079245 + ... + 9020955.

Almost surely, 2^{22210212221100} is an apocalyptic number.

22210212221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22210212221100 is an abundant number, since it is smaller than the sum of its proper divisors (47414786320180).

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

22210212221100 is a wasteful number, since it uses less digits than its factorization.

22210212221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2950120 (or 2950110 counting only the distinct ones).

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

Adding to 22210212221100 its reverse (112221201222), we get a palindrome (22322433422322).

The spelling of 22210212221100 in words is "twenty-two trillion, two hundred ten billion, two hundred twelve million, two hundred twenty-one thousand, one hundred".