12021012079 has 2 divisors, whose sum is σ = 12021012080. Its totient is φ = 12021012078.

The previous prime is 12021012019. The next prime is 12021012109. The reversal of 12021012079 is 97021012021.

It is a strong prime.

It is an emirp because it is prime and its reverse (97021012021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021012079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021012019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010506039 + 6010506040.

It is an arithmetic number, because the mean of its divisors is an integer number (6010506040).

Almost surely, 2^12021012079 is an apocalyptic number.

12021012079 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021012079 is an equidigital number, since it uses as much as digits as its factorization.

12021012079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 12021012079 in words is "twelve billion, twenty-one million, twelve thousand, seventy-nine".