21301021201001 has 4 divisors (see below), whose sum is σ = 21359062131072. Its totient is φ = 21242980270932.

The previous prime is 21301021200923. The next prime is 21301021201037. The reversal of 21301021201001 is 10010212010312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21301021201001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21301021251001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29020464485 + ... + 29020465218.

It is an arithmetic number, because the mean of its divisors is an integer number (5339765532768).

Almost surely, 2^{21301021201001} is an apocalyptic number.

It is an amenable number.

21301021201001 is a deficient number, since it is larger than the sum of its proper divisors (58040930071).

21301021201001 is an equidigital number, since it uses as much as digits as its factorization.

21301021201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58040930070.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21301021201001 its reverse (10010212010312), we get a palindrome (31311233211313).

The spelling of 21301021201001 in words is "twenty-one trillion, three hundred one billion, twenty-one million, two hundred one thousand, one".