21112210002200 has 48 divisors (see below), whose sum is σ = 49571887196160. Its totient is φ = 8361271280000.

The previous prime is 21112210002157. The next prime is 21112210002203. The reversal of 21112210002200 is 220001221112.

It is a super-2 number, since 2×21112210002200² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112210002203) 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 11 ways as a sum of consecutive naturals, for example, 522559256 + ... + 522599655.

It is an arithmetic number, because the mean of its divisors is an integer number (1032747649920).

Almost surely, 2^{21112210002200} is an apocalyptic number.

21112210002200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21112210002200 is an abundant number, since it is smaller than the sum of its proper divisors (28459677193960).

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

21112210002200 is a wasteful number, since it uses less digits than its factorization.

21112210002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045159028 (or 1045159019 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21112210002200 its reverse (220001221112), we get a palindrome (21332211223312).

The spelling of 21112210002200 in words is "twenty-one trillion, one hundred twelve billion, two hundred ten million, two thousand, two hundred".