21013322233 has 2 divisors, whose sum is σ = 21013322234. Its totient is φ = 21013322232.

The previous prime is 21013322203. The next prime is 21013322263. The reversal of 21013322233 is 33222331012.

It is a balanced prime because it is at equal distance from previous prime (21013322203) and next prime (21013322263).

It can be written as a sum of positive squares in only one way, i.e., 13394127289 + 7619194944 = 115733^2 + 87288^2 .

It is a cyclic number.

It is not a de Polignac number, because 21013322233 - 2⁵ = 21013322201 is a prime.

It is a super-2 number, since 2×21013322233² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21013322203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10506661116 + 10506661117.

It is an arithmetic number, because the mean of its divisors is an integer number (10506661117).

Almost surely, 2^21013322233 is an apocalyptic number.

It is an amenable number.

21013322233 is a deficient number, since it is larger than the sum of its proper divisors (1).

21013322233 is an equidigital number, since it uses as much as digits as its factorization.

21013322233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21013322233 its reverse (33222331012), we get a palindrome (54235653245).

The spelling of 21013322233 in words is "twenty-one billion, thirteen million, three hundred twenty-two thousand, two hundred thirty-three".