21133302000 has 80 divisors (see below), whose sum is σ = 68133784992. Its totient is φ = 5635545600.

The previous prime is 21133301999. The next prime is 21133302019. The reversal of 21133302000 is 20333112.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

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 15 ways as a sum of consecutive naturals, for example, 1755109 + ... + 1767108.

Almost surely, 2^21133302000 is an apocalyptic number.

21133302000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21133302000 is an abundant number, since it is smaller than the sum of its proper divisors (47000482992).

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

21133302000 is a wasteful number, since it uses less digits than its factorization.

21133302000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3522243 (or 3522227 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 21133302000 its reverse (20333112), we get a palindrome (21153635112).

The spelling of 21133302000 in words is "twenty-one billion, one hundred thirty-three million, three hundred two thousand".