12212919982 has 4 divisors (see below), whose sum is σ = 18319379976. Its totient is φ = 6106459990.

The previous prime is 12212919893. The next prime is 12212920033. The reversal of 12212919982 is 28991921221.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3053229994 + ... + 3053229997.

It is an arithmetic number, because the mean of its divisors is an integer number (4579844994).

Almost surely, 2^12212919982 is an apocalyptic number.

12212919982 is a deficient number, since it is larger than the sum of its proper divisors (6106459994).

12212919982 is an equidigital number, since it uses as much as digits as its factorization.

12212919982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106459993.

The product of its digits is 93312, while the sum is 46.

The spelling of 12212919982 in words is "twelve billion, two hundred twelve million, nine hundred nineteen thousand, nine hundred eighty-two".