12010112001 has 64 divisors (see below), whose sum is σ = 18675498240. Its totient is φ = 7621447680.

The previous prime is 12010111969. The next prime is 12010112041. The reversal of 12010112001 is 10021101021.

It is a happy number.

It is not a de Polignac number, because 12010112001 - 2⁵ = 12010111969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12010112041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8380381 + ... + 8381813.

It is an arithmetic number, because the mean of its divisors is an integer number (291804660).

Almost surely, 2^12010112001 is an apocalyptic number.

It is an amenable number.

12010112001 is a deficient number, since it is larger than the sum of its proper divisors (6665386239).

12010112001 is a wasteful number, since it uses less digits than its factorization.

12010112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663 (or 1657 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12010112001 its reverse (10021101021), we get a palindrome (22031213022).

The spelling of 12010112001 in words is "twelve billion, ten million, one hundred twelve thousand, one".