21114122233 has 2 divisors, whose sum is σ = 21114122234. Its totient is φ = 21114122232.

The previous prime is 21114122209. The next prime is 21114122269. The reversal of 21114122233 is 33222141112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19246845289 + 1867276944 = 138733^2 + 43212^2 .

It is a cyclic number.

It is not a de Polignac number, because 21114122233 - 2⁵ = 21114122201 is a prime.

It is not a weakly prime, because it can be changed into another prime (21114122833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10557061116 + 10557061117.

It is an arithmetic number, because the mean of its divisors is an integer number (10557061117).

Almost surely, 2^21114122233 is an apocalyptic number.

It is an amenable number.

21114122233 is a deficient number, since it is larger than the sum of its proper divisors (1).

21114122233 is an equidigital number, since it uses as much as digits as its factorization.

21114122233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 22.

Adding to 21114122233 its reverse (33222141112), we get a palindrome (54336263345).

The spelling of 21114122233 in words is "twenty-one billion, one hundred fourteen million, one hundred twenty-two thousand, two hundred thirty-three".