21202322411 has 8 divisors (see below), whose sum is σ = 21237748560. Its totient is φ = 21166919968.

The previous prime is 21202322387. The next prime is 21202322419. The reversal of 21202322411 is 11422320212.

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-21202322411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21202322419) 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, 2816825 + ... + 2824341.

It is an arithmetic number, because the mean of its divisors is an integer number (2654718570).

Almost surely, 2^21202322411 is an apocalyptic number.

21202322411 is a deficient number, since it is larger than the sum of its proper divisors (35426149).

21202322411 is an equidigital number, since it uses as much as digits as its factorization.

21202322411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11853.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21202322411 its reverse (11422320212), we get a palindrome (32624642623).

The spelling of 21202322411 in words is "twenty-one billion, two hundred two million, three hundred twenty-two thousand, four hundred eleven".