13331212001 has 4 divisors (see below), whose sum is σ = 13499961600. Its totient is φ = 13162462404.

The previous prime is 13331211991. The next prime is 13331212009. The reversal of 13331212001 is 10021213331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13331212001 - 2⁶ = 13331211937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13331212009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84374681 + ... + 84374838.

It is an arithmetic number, because the mean of its divisors is an integer number (3374990400).

Almost surely, 2^13331212001 is an apocalyptic number.

It is an amenable number.

13331212001 is a deficient number, since it is larger than the sum of its proper divisors (168749599).

13331212001 is an equidigital number, since it uses as much as digits as its factorization.

13331212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168749598.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13331212001 its reverse (10021213331), we get a palindrome (23352425332).

The spelling of 13331212001 in words is "thirteen billion, three hundred thirty-one million, two hundred twelve thousand, one".