12220210291 has 4 divisors (see below), whose sum is σ = 12504401272. Its totient is φ = 11936019312.

The previous prime is 12220210271. The next prime is 12220210361. The reversal of 12220210291 is 19201202221.

12220210291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12220210291 - 2¹⁵ = 12220177523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220210241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142095426 + ... + 142095511.

It is an arithmetic number, because the mean of its divisors is an integer number (3126100318).

Almost surely, 2^12220210291 is an apocalyptic number.

12220210291 is a deficient number, since it is larger than the sum of its proper divisors (284190981).

12220210291 is an equidigital number, since it uses as much as digits as its factorization.

12220210291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284190980.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 12220210291 in words is "twelve billion, two hundred twenty million, two hundred ten thousand, two hundred ninety-one".