12211022122200 has 288 divisors, whose sum is σ = 46231448029200. Its totient is φ = 2960247628800.

The previous prime is 12211022122163. The next prime is 12211022122223. The reversal of 12211022122200 is 222122011221.

It is a happy number.

12211022122200 is a `hidden beast` number, since 1 + 221 + 1 + 0 + 221 + 2 + 220 + 0 = 666.

It is a super-2 number, since 2×12211022122200² (a number of 27 digits) contains 22 as substring.

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 71 ways as a sum of consecutive naturals, for example, 8690817 + ... + 9997616.

Almost surely, 2^{12211022122200} is an apocalyptic number.

12211022122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211022122200 is an abundant number, since it is smaller than the sum of its proper divisors (34020425907000).

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

12211022122200 is a wasteful number, since it uses less digits than its factorization.

12211022122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18688480 (or 18688454 counting only the distinct ones).

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

Adding to 12211022122200 its reverse (222122011221), we get a palindrome (12433144133421).

The spelling of 12211022122200 in words is "twelve trillion, two hundred eleven billion, twenty-two million, one hundred twenty-two thousand, two hundred".