21403003122200 has 96 divisors (see below), whose sum is σ = 57671834837760. Its totient is φ = 7234817923200.

The previous prime is 21403003122187. The next prime is 21403003122227. The reversal of 21403003122200 is 222130030412.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107561582 + ... + 107760381.

It is an arithmetic number, because the mean of its divisors is an integer number (600748279560).

Almost surely, 2^{21403003122200} is an apocalyptic number.

21403003122200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21403003122200 is an abundant number, since it is smaller than the sum of its proper divisors (36268831715560).

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

21403003122200 is a wasteful number, since it uses less digits than its factorization.

21403003122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215322057 (or 215322048 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21403003122200 its reverse (222130030412), we get a palindrome (21625133152612).

The spelling of 21403003122200 in words is "twenty-one trillion, four hundred three billion, three million, one hundred twenty-two thousand, two hundred".