12211100200020 has 24 divisors (see below), whose sum is σ = 34191080560224. Its totient is φ = 3256293386656.

The previous prime is 12211100200007. The next prime is 12211100200021. The reversal of 12211100200020 is 2000200111221.

It is a super-2 number, since 2×12211100200020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12211100199969 and 12211100200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211100200021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101759168274 + ... + 101759168393.

It is an arithmetic number, because the mean of its divisors is an integer number (1424628356676).

Almost surely, 2^{12211100200020} is an apocalyptic number.

12211100200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211100200020 is an abundant number, since it is smaller than the sum of its proper divisors (21979980360204).

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

12211100200020 is a wasteful number, since it uses less digits than its factorization.

12211100200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203518336679 (or 203518336677 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12211100200020 its reverse (2000200111221), we get a palindrome (14211300311241).

The spelling of 12211100200020 in words is "twelve trillion, two hundred eleven billion, one hundred million, two hundred thousand, twenty".