21103223310200 has 24 divisors (see below), whose sum is σ = 49064994196680. Its totient is φ = 8441289324000.

The previous prime is 21103223310181. The next prime is 21103223310287. The reversal of 21103223310200 is 201332230112.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52758058076 + ... + 52758058475.

It is an arithmetic number, because the mean of its divisors is an integer number (2044374758195).

Almost surely, 2^{21103223310200} is an apocalyptic number.

21103223310200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21103223310200 is an abundant number, since it is smaller than the sum of its proper divisors (27961770886480).

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

21103223310200 is a wasteful number, since it uses less digits than its factorization.

21103223310200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105516116567 (or 105516116558 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21103223310200 its reverse (201332230112), we get a palindrome (21304555540312).

The spelling of 21103223310200 in words is "twenty-one trillion, one hundred three billion, two hundred twenty-three million, three hundred ten thousand, two hundred".