21202948799 has 8 divisors (see below), whose sum is σ = 21382688880. Its totient is φ = 21023956800.

The previous prime is 21202948763. The next prime is 21202948817. The reversal of 21202948799 is 99784920212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21202948799 - 2²⁴ = 21186171583 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21202948799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202248799) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 130022 + ... + 243539.

It is an arithmetic number, because the mean of its divisors is an integer number (2672836110).

Almost surely, 2^21202948799 is an apocalyptic number.

21202948799 is a deficient number, since it is larger than the sum of its proper divisors (179740081).

21202948799 is a wasteful number, since it uses less digits than its factorization.

21202948799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374041.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 21202948799 in words is "twenty-one billion, two hundred two million, nine hundred forty-eight thousand, seven hundred ninety-nine".