12191272404 has 48 divisors (see below), whose sum is σ = 30234247680. Its totient is φ = 3812490720.

The previous prime is 12191272403. The next prime is 12191272433. The reversal of 12191272404 is 40427219121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12191272403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236082 + ... + 283049.

It is an arithmetic number, because the mean of its divisors is an integer number (629880160).

Almost surely, 2^12191272404 is an apocalyptic number.

It is an amenable number.

12191272404 is an abundant number, since it is smaller than the sum of its proper divisors (18042975276).

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

12191272404 is a wasteful number, since it uses less digits than its factorization.

12191272404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519260 (or 519258 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The spelling of 12191272404 in words is "twelve billion, one hundred ninety-one million, two hundred seventy-two thousand, four hundred four".