21032220000 has 360 divisors, whose sum is σ = 75858036408. Its totient is φ = 5096960000.

The previous prime is 21032219959. The next prime is 21032220017. The reversal of 21032220000 is 2223012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 7258552 + ... + 7261448.

Almost surely, 2^21032220000 is an apocalyptic number.

21032220000 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 21032220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37929018204).

21032220000 is an abundant number, since it is smaller than the sum of its proper divisors (54825816408).

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

21032220000 is a wasteful number, since it uses less digits than its factorization.

21032220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952 (or 2918 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 21032220000 its reverse (2223012), we get a palindrome (21034443012).

The spelling of 21032220000 in words is "twenty-one billion, thirty-two million, two hundred twenty thousand".