12246724021 has 8 divisors (see below), whose sum is σ = 14001564800. Its totient is φ = 10493210448.

The previous prime is 12246724019. The next prime is 12246724031. The reversal of 12246724021 is 12042764221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12246724021 - 2¹ = 12246724019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12246724001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311946 + ... + 349003.

It is an arithmetic number, because the mean of its divisors is an integer number (1750195600).

Almost surely, 2^12246724021 is an apocalyptic number.

It is an amenable number.

12246724021 is a deficient number, since it is larger than the sum of its proper divisors (1754840779).

12246724021 is an equidigital number, since it uses as much as digits as its factorization.

12246724021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663603.

The product of its (nonzero) digits is 10752, while the sum is 31.

The spelling of 12246724021 in words is "twelve billion, two hundred forty-six million, seven hundred twenty-four thousand, twenty-one".