12602332021 has 2 divisors, whose sum is σ = 12602332022. Its totient is φ = 12602332020.

The previous prime is 12602332013. The next prime is 12602332031. The reversal of 12602332021 is 12023320621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12318780100 + 283551921 = 110990^2 + 16839^2 .

It is a cyclic number.

It is not a de Polignac number, because 12602332021 - 2³ = 12602332013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12602331983 and 12602332001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12602332031) 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, 6301166010 + 6301166011.

It is an arithmetic number, because the mean of its divisors is an integer number (6301166011).

Almost surely, 2^12602332021 is an apocalyptic number.

It is an amenable number.

12602332021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12602332021 is an equidigital number, since it uses as much as digits as its factorization.

12602332021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12602332021 its reverse (12023320621), we get a palindrome (24625652642).

The spelling of 12602332021 in words is "twelve billion, six hundred two million, three hundred thirty-two thousand, twenty-one".