21021300012301 has 16 divisors (see below), whose sum is σ = 21581208633600. Its totient is φ = 20469603667968.

The previous prime is 21021300012259. The next prime is 21021300012347. The reversal of 21021300012301 is 10321000312012.

It is a cyclic number.

It is not a de Polignac number, because 21021300012301 - 2¹¹ = 21021300010253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21021300010301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1005285 + ... + 6561493.

It is an arithmetic number, because the mean of its divisors is an integer number (1348825539600).

Almost surely, 2^{21021300012301} is an apocalyptic number.

It is an amenable number.

21021300012301 is a deficient number, since it is larger than the sum of its proper divisors (559908621299).

21021300012301 is an equidigital number, since it uses as much as digits as its factorization.

21021300012301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5556948.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21021300012301 its reverse (10321000312012), we get a palindrome (31342300324313).

The spelling of 21021300012301 in words is "twenty-one trillion, twenty-one billion, three hundred million, twelve thousand, three hundred one".