12001573312272 has 120 divisors (see below), whose sum is σ = 33634531966464. Its totient is φ = 3994954163712.

The previous prime is 12001573312247. The next prime is 12001573312273. The reversal of 12001573312272 is 27221337510021.

12001573312272 is a `hidden beast` number, since 1 + 2 + 0 + 0 + 1 + 5 + 73 + 312 + 272 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12001573312273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 378260473 + ... + 378292199.

Almost surely, 2^{12001573312272} is an apocalyptic number.

12001573312272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001573312272 is an abundant number, since it is smaller than the sum of its proper divisors (21632958654192).

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

12001573312272 is a wasteful number, since it uses less digits than its factorization.

12001573312272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35317 (or 35308 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The spelling of 12001573312272 in words is "twelve trillion, one billion, five hundred seventy-three million, three hundred twelve thousand, two hundred seventy-two".