2121241223 has 2 divisors, whose sum is σ = 2121241224. Its totient is φ = 2121241222.

The previous prime is 2121241193. The next prime is 2121241259. The reversal of 2121241223 is 3221421212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121241223 - 2⁶ = 2121241159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2121241195 and 2121241204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121241273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060620611 + 1060620612.

It is an arithmetic number, because the mean of its divisors is an integer number (1060620612).

Almost surely, 2^2121241223 is an apocalyptic number.

2121241223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121241223 is an equidigital number, since it uses as much as digits as its factorization.

2121241223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 20.

The square root of 2121241223 is about 46056.9345810161. The cubic root of 2121241223 is about 1284.8823186047.

Adding to 2121241223 its reverse (3221421212), we get a palindrome (5342662435).

The spelling of 2121241223 in words is "two billion, one hundred twenty-one million, two hundred forty-one thousand, two hundred twenty-three".