12172061292 has 12 divisors (see below), whose sum is σ = 28401476376. Its totient is φ = 4057353760.

The previous prime is 12172061243. The next prime is 12172061327. The reversal of 12172061292 is 29216027121.

12172061292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507169209 + ... + 507169232.

It is an arithmetic number, because the mean of its divisors is an integer number (2366789698).

Almost surely, 2^12172061292 is an apocalyptic number.

12172061292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12172061292 is an abundant number, since it is smaller than the sum of its proper divisors (16229415084).

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

12172061292 is a wasteful number, since it uses less digits than its factorization.

12172061292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014338448 (or 1014338446 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The spelling of 12172061292 in words is "twelve billion, one hundred seventy-two million, sixty-one thousand, two hundred ninety-two".