12021356339 has 2 divisors, whose sum is σ = 12021356340. Its totient is φ = 12021356338.

The previous prime is 12021356327. The next prime is 12021356381. The reversal of 12021356339 is 93365312021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12021356339 - 2¹⁶ = 12021290803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12021356299 and 12021356308.

It is not a weakly prime, because it can be changed into another prime (12021356309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010678169 + 6010678170.

It is an arithmetic number, because the mean of its divisors is an integer number (6010678170).

Almost surely, 2^12021356339 is an apocalyptic number.

12021356339 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021356339 is an equidigital number, since it uses as much as digits as its factorization.

12021356339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 35.

The spelling of 12021356339 in words is "twelve billion, twenty-one million, three hundred fifty-six thousand, three hundred thirty-nine".