21403022220200 has 96 divisors (see below), whose sum is σ = 50991158232000. Its totient is φ = 8349871756800.

The previous prime is 21403022220163. The next prime is 21403022220301. The reversal of 21403022220200 is 202222030412.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26822591 + ... + 27609009.

It is an arithmetic number, because the mean of its divisors is an integer number (531157898250).

Almost surely, 2^{21403022220200} is an apocalyptic number.

21403022220200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21403022220200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25495579116000).

21403022220200 is an abundant number, since it is smaller than the sum of its proper divisors (29588136011800).

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

21403022220200 is a wasteful number, since it uses less digits than its factorization.

21403022220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789795 (or 789786 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 21403022220200 its reverse (202222030412), we get a palindrome (21605244250612).

The spelling of 21403022220200 in words is "twenty-one trillion, four hundred three billion, twenty-two million, two hundred twenty thousand, two hundred".