12211442304 has 64 divisors (see below), whose sum is σ = 32476710240. Its totient is φ = 4065453056.

The previous prime is 12211442251. The next prime is 12211442387. The reversal of 12211442304 is 40324411221.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298342 + ... + 336794.

Almost surely, 2^12211442304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12211442304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16238355120).

12211442304 is an abundant number, since it is smaller than the sum of its proper divisors (20265267936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211442304 is an equidigital number, since it uses as much as digits as its factorization.

12211442304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39297 (or 39285 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12211442304 its reverse (40324411221), we get a palindrome (52535853525).

The spelling of 12211442304 in words is "twelve billion, two hundred eleven million, four hundred forty-two thousand, three hundred four".