21001202303201 has 8 divisors (see below), whose sum is σ = 21242979732480. Its totient is φ = 20760618837168.

The previous prime is 21001202303197. The next prime is 21001202303227. The reversal of 21001202303201 is 10230320210012.

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 21001202303201 - 2² = 21001202303197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21001202303201.

It is not an unprimeable number, because it can be changed into a prime (21001202303401) 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, 298455431 + ... + 298525788.

It is an arithmetic number, because the mean of its divisors is an integer number (2655372466560).

Almost surely, 2^{21001202303201} is an apocalyptic number.

It is an amenable number.

21001202303201 is a deficient number, since it is larger than the sum of its proper divisors (241777429279).

21001202303201 is a wasteful number, since it uses less digits than its factorization.

21001202303201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596981623.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21001202303201 its reverse (10230320210012), we get a palindrome (31231522513213).

The spelling of 21001202303201 in words is "twenty-one trillion, one billion, two hundred two million, three hundred three thousand, two hundred one".