21331322010011 has 16 divisors (see below), whose sum is σ = 22985342100000. Its totient is φ = 19679183048448.

The previous prime is 21331322010001. The next prime is 21331322010049. The reversal of 21331322010011 is 11001022313312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21331322010011 - 2¹⁰ = 21331322008987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21331322010001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208061240 + ... + 208163738.

It is an arithmetic number, because the mean of its divisors is an integer number (1436583881250).

Almost surely, 2^{21331322010011} is an apocalyptic number.

21331322010011 is a deficient number, since it is larger than the sum of its proper divisors (1654020089989).

21331322010011 is a wasteful number, since it uses less digits than its factorization.

21331322010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111518.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21331322010011 its reverse (11001022313312), we get a palindrome (32332344323323).

The spelling of 21331322010011 in words is "twenty-one trillion, three hundred thirty-one billion, three hundred twenty-two million, ten thousand, eleven".