21321301021201 has 8 divisors (see below), whose sum is σ = 21325235104800. Its totient is φ = 21317367271200.

The previous prime is 21321301021177. The next prime is 21321301021243. The reversal of 21321301021201 is 10212010312312.

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 21321301021201 - 2⁵ = 21321301021169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21321301024201) 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, 152509590 + ... + 152649328.

It is an arithmetic number, because the mean of its divisors is an integer number (2665654388100).

Almost surely, 2^{21321301021201} is an apocalyptic number.

It is an amenable number.

21321301021201 is a deficient number, since it is larger than the sum of its proper divisors (3934083599).

21321301021201 is a wasteful number, since it uses less digits than its factorization.

21321301021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166799.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21321301021201 its reverse (10212010312312), we get a palindrome (31533311333513).

The spelling of 21321301021201 in words is "twenty-one trillion, three hundred twenty-one billion, three hundred one million, twenty-one thousand, two hundred one".