12011112001 has 8 divisors (see below), whose sum is σ = 13862896704. Its totient is φ = 10193305200.

The previous prime is 12011111977. The next prime is 12011112007. The reversal of 12011112001 is 10021111021.

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

It is a cyclic number.

It is not a de Polignac number, because 12011112001 - 2⁷ = 12011111873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011112007) 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, 8493715 + ... + 8495128.

It is an arithmetic number, because the mean of its divisors is an integer number (1732862088).

Almost surely, 2^12011112001 is an apocalyptic number.

It is an amenable number.

12011112001 is a deficient number, since it is larger than the sum of its proper divisors (1851784703).

12011112001 is a wasteful number, since it uses less digits than its factorization.

12011112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16988951.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12011112001 its reverse (10021111021), we get a palindrome (22032223022).

The spelling of 12011112001 in words is "twelve billion, eleven million, one hundred twelve thousand, one".