21322210000 has 200 divisors, whose sum is σ = 63538961024. Its totient is φ = 6747840000.

The previous prime is 21322209989. The next prime is 21322210027. The reversal of 21322210000 is 1222312.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 898285 + ... + 921715.

Almost surely, 2^21322210000 is an apocalyptic number.

21322210000 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 21322210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31769480512).

21322210000 is an abundant number, since it is smaller than the sum of its proper divisors (42216751024).

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

21322210000 is a wasteful number, since it uses less digits than its factorization.

21322210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23479 (or 23458 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 21322210000 its reverse (1222312), we get a palindrome (21323432312).

The spelling of 21322210000 in words is "twenty-one billion, three hundred twenty-two million, two hundred ten thousand".