21202948801 has 8 divisors (see below), whose sum is σ = 21368416608. Its totient is φ = 21037536000.

The previous prime is 21202948763. The next prime is 21202948817. The reversal of 21202948801 is 10884920212.

It is a happy number.

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 21202948801 - 2¹⁷ = 21202817729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21202978801) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1122606 + ... + 1141336.

It is an arithmetic number, because the mean of its divisors is an integer number (2671052076).

Almost surely, 2^21202948801 is an apocalyptic number.

It is an amenable number.

21202948801 is a deficient number, since it is larger than the sum of its proper divisors (165467807).

21202948801 is a wasteful number, since it uses less digits than its factorization.

21202948801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27503.

The product of its (nonzero) digits is 18432, while the sum is 37.

The spelling of 21202948801 in words is "twenty-one billion, two hundred two million, nine hundred forty-eight thousand, eight hundred one".