12027062521 has 2 divisors, whose sum is σ = 12027062522. Its totient is φ = 12027062520.

The previous prime is 12027062519. The next prime is 12027062557. The reversal of 12027062521 is 12526072021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11334583296 + 692479225 = 106464^2 + 26315^2 .

It is a cyclic number.

It is not a de Polignac number, because 12027062521 - 2¹ = 12027062519 is a prime.

Together with 12027062519, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12027062521.

It is not a weakly prime, because it can be changed into another prime (12027062501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6013531260 + 6013531261.

It is an arithmetic number, because the mean of its divisors is an integer number (6013531261).

Almost surely, 2^12027062521 is an apocalyptic number.

It is an amenable number.

12027062521 is a deficient number, since it is larger than the sum of its proper divisors (1).

12027062521 is an equidigital number, since it uses as much as digits as its factorization.

12027062521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 12027062521 in words is "twelve billion, twenty-seven million, sixty-two thousand, five hundred twenty-one".