21223100013331 has 16 divisors (see below), whose sum is σ = 23019922826208. Its totient is φ = 19487224627200.

The previous prime is 21223100013317. The next prime is 21223100013341. The reversal of 21223100013331 is 13331000132212.

It is a cyclic number.

It is not a de Polignac number, because 21223100013331 - 2⁵ = 21223100013299 is a prime.

It is a super-2 number, since 2×21223100013331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21223100013341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64100371 + ... + 64430611.

It is an arithmetic number, because the mean of its divisors is an integer number (1438745176638).

Almost surely, 2^{21223100013331} is an apocalyptic number.

21223100013331 is a deficient number, since it is larger than the sum of its proper divisors (1796822812877).

21223100013331 is a wasteful number, since it uses less digits than its factorization.

21223100013331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422502.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21223100013331 its reverse (13331000132212), we get a palindrome (34554100145543).

The spelling of 21223100013331 in words is "twenty-one trillion, two hundred twenty-three billion, one hundred million, thirteen thousand, three hundred thirty-one".