12225513533 has 2 divisors, whose sum is σ = 12225513534. Its totient is φ = 12225513532.

The previous prime is 12225513529. The next prime is 12225513581. The reversal of 12225513533 is 33531552221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12197656249 + 27857284 = 110443^2 + 5278^2 .

It is a cyclic number.

It is not a de Polignac number, because 12225513533 - 2² = 12225513529 is a prime.

It is a super-2 number, since 2×12225513533² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12225513533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12225513593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112756766 + 6112756767.

It is an arithmetic number, because the mean of its divisors is an integer number (6112756767).

Almost surely, 2^12225513533 is an apocalyptic number.

It is an amenable number.

12225513533 is a deficient number, since it is larger than the sum of its proper divisors (1).

12225513533 is an equidigital number, since it uses as much as digits as its factorization.

12225513533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27000, while the sum is 32.

The spelling of 12225513533 in words is "twelve billion, two hundred twenty-five million, five hundred thirteen thousand, five hundred thirty-three".