12264242021 has 2 divisors, whose sum is σ = 12264242022. Its totient is φ = 12264242020.

The previous prime is 12264241943. The next prime is 12264242047. The reversal of 12264242021 is 12024246221.

It is an a-pointer prime, because the next prime (12264242047) can be obtained adding 12264242021 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12230148100 + 34093921 = 110590^2 + 5839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12264242021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12264242521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6132121010 + 6132121011.

It is an arithmetic number, because the mean of its divisors is an integer number (6132121011).

Almost surely, 2^12264242021 is an apocalyptic number.

It is an amenable number.

12264242021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12264242021 is an equidigital number, since it uses as much as digits as its factorization.

12264242021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 12264242021 its reverse (12024246221), we get a palindrome (24288488242).

The spelling of 12264242021 in words is "twelve billion, two hundred sixty-four million, two hundred forty-two thousand, twenty-one".