21322311210001 has 4 divisors (see below), whose sum is σ = 21391764992752. Its totient is φ = 21252857427252.

The previous prime is 21322311209977. The next prime is 21322311210017. The reversal of 21322311210001 is 10001211322312.

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 not a de Polignac number, because 21322311210001 - 2²⁷ = 21322176992273 is a prime.

It is a super-2 number, since 2×21322311210001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21322311210041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34726890915 + ... + 34726891528.

It is an arithmetic number, because the mean of its divisors is an integer number (5347941248188).

Almost surely, 2^{21322311210001} is an apocalyptic number.

It is an amenable number.

21322311210001 is a deficient number, since it is larger than the sum of its proper divisors (69453782751).

21322311210001 is an equidigital number, since it uses as much as digits as its factorization.

21322311210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69453782750.

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

Adding to 21322311210001 its reverse (10001211322312), we get a palindrome (31323522532313).

The spelling of 21322311210001 in words is "twenty-one trillion, three hundred twenty-two billion, three hundred eleven million, two hundred ten thousand, one".