21300201021 has 8 divisors (see below), whose sum is σ = 30982110624. Its totient is φ = 12909212720.

The previous prime is 21300200927. The next prime is 21300201067. The reversal of 21300201021 is 12010200312.

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 21300201021 - 2¹¹ = 21300198973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21300200988 and 21300201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300201071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322730286 + ... + 322730351.

It is an arithmetic number, because the mean of its divisors is an integer number (3872763828).

Almost surely, 2^21300201021 is an apocalyptic number.

It is an amenable number.

21300201021 is a deficient number, since it is larger than the sum of its proper divisors (9681909603).

21300201021 is a wasteful number, since it uses less digits than its factorization.

21300201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645460651.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 21300201021 its reverse (12010200312), we get a palindrome (33310401333).

The spelling of 21300201021 in words is "twenty-one billion, three hundred million, two hundred one thousand, twenty-one".