12020210291 has 2 divisors, whose sum is σ = 12020210292. Its totient is φ = 12020210290.

The previous prime is 12020210273. The next prime is 12020210299. The reversal of 12020210291 is 19201202021.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (19201202021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12020210291 - 2¹⁴ = 12020193907 is a prime.

It is not a weakly prime, because it can be changed into another prime (12020210299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010105145 + 6010105146.

It is an arithmetic number, because the mean of its divisors is an integer number (6010105146).

Almost surely, 2^12020210291 is an apocalyptic number.

12020210291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020210291 is an equidigital number, since it uses as much as digits as its factorization.

12020210291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 12020210291 in words is "twelve billion, twenty million, two hundred ten thousand, two hundred ninety-one".