21110110110200 has 48 divisors (see below), whose sum is σ = 49084684026480. Its totient is φ = 8443411266560.

The previous prime is 21110110110197. The next prime is 21110110110379. The reversal of 21110110110200 is 201101101112.

It is a super-2 number, since 2×21110110110200² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1274777 + ... + 6621576.

It is an arithmetic number, because the mean of its divisors is an integer number (1022597583885).

Almost surely, 2^{21110110110200} is an apocalyptic number.

21110110110200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21110110110200 is an abundant number, since it is smaller than the sum of its proper divisors (27974573916280).

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

21110110110200 is a wasteful number, since it uses less digits than its factorization.

21110110110200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7909736 (or 7909727 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 21110110110200 its reverse (201101101112), we get a palindrome (21311211211312).

The spelling of 21110110110200 in words is "twenty-one trillion, one hundred ten billion, one hundred ten million, one hundred ten thousand, two hundred".