21210322301 has 8 divisors (see below), whose sum is σ = 24242894400. Its totient is φ = 18178381728.

The previous prime is 21210322279. The next prime is 21210322303. The reversal of 21210322301 is 10322301212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21210322301 is a prime.

It is a super-2 number, since 2×21210322301² (a number of 21 digits) contains 22 as substring.

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 21210322301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21210322303) 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, 83576 + ... + 222273.

It is an arithmetic number, because the mean of its divisors is an integer number (3030361800).

Almost surely, 2^21210322301 is an apocalyptic number.

It is an amenable number.

21210322301 is a deficient number, since it is larger than the sum of its proper divisors (3032572099).

21210322301 is an equidigital number, since it uses as much as digits as its factorization.

21210322301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315763.

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

Adding to 21210322301 its reverse (10322301212), we get a palindrome (31532623513).

The spelling of 21210322301 in words is "twenty-one billion, two hundred ten million, three hundred twenty-two thousand, three hundred one".