21133311122223 has 10 divisors (see below), whose sum is σ = 31569514145664. Its totient is φ = 14088874081428.

The previous prime is 21133311122191. The next prime is 21133311122293. The reversal of 21133311122223 is 32222111333112.

21133311122223 is a `hidden beast` number, since 2 + 1 + 1 + 3 + 3 + 311 + 122 + 223 = 666.

It is not a de Polignac number, because 21133311122223 - 2⁵ = 21133311122191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133311122293) 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 9 ways as a sum of consecutive naturals, for example, 130452537711 + ... + 130452537872.

Almost surely, 2^{21133311122223} is an apocalyptic number.

21133311122223 is a deficient number, since it is larger than the sum of its proper divisors (10436203023441).

21133311122223 is an equidigital number, since it uses as much as digits as its factorization.

21133311122223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260905075595 (or 260905075586 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 21133311122223 its reverse (32222111333112), we get a palindrome (53355422455335).

The spelling of 21133311122223 in words is "twenty-one trillion, one hundred thirty-three billion, three hundred eleven million, one hundred twenty-two thousand, two hundred twenty-three".