21300230122021 has 16 divisors (see below), whose sum is σ = 22604735704320. Its totient is φ = 20027673832320.

The previous prime is 21300230121967. The next prime is 21300230122033. The reversal of 21300230122021 is 12022103200312.

It is a cyclic number.

It is not a de Polignac number, because 21300230122021 - 2¹³ = 21300230113829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21300230122021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300230122081) 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 15 ways as a sum of consecutive naturals, for example, 2460385 + ... + 6975238.

It is an arithmetic number, because the mean of its divisors is an integer number (1412795981520).

Almost surely, 2^{21300230122021} is an apocalyptic number.

It is an amenable number.

21300230122021 is a deficient number, since it is larger than the sum of its proper divisors (1304505582299).

21300230122021 is a wasteful number, since it uses less digits than its factorization.

21300230122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9437316.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21300230122021 its reverse (12022103200312), we get a palindrome (33322333322333).

The spelling of 21300230122021 in words is "twenty-one trillion, three hundred billion, two hundred thirty million, one hundred twenty-two thousand, twenty-one".