12201482891 has 4 divisors (see below), whose sum is σ = 13140058512. Its totient is φ = 11262907272.

The previous prime is 12201482837. The next prime is 12201482959. The reversal of 12201482891 is 19828410221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19828410221 = 349 ⋅56814929.

It is a cyclic number.

It is not a de Polignac number, because 12201482891 - 2⁶ = 12201482827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12201482801) 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 in 3 ways as a sum of consecutive naturals, for example, 469287791 + ... + 469287816.

It is an arithmetic number, because the mean of its divisors is an integer number (3285014628).

Almost surely, 2^12201482891 is an apocalyptic number.

12201482891 is a deficient number, since it is larger than the sum of its proper divisors (938575621).

12201482891 is an equidigital number, since it uses as much as digits as its factorization.

12201482891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938575620.

The product of its (nonzero) digits is 18432, while the sum is 38.

The spelling of 12201482891 in words is "twelve billion, two hundred one million, four hundred eighty-two thousand, eight hundred ninety-one".