12112211001 has 8 divisors (see below), whose sum is σ = 17617761504. Its totient is φ = 7340733920.

The previous prime is 12112210997. The next prime is 12112211047. The reversal of 12112211001 is 10011221121.

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 12112211001 - 2² = 12112210997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12112211801) 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, 183518316 + ... + 183518381.

It is an arithmetic number, because the mean of its divisors is an integer number (2202220188).

Almost surely, 2^12112211001 is an apocalyptic number.

12112211001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12112211001 is a deficient number, since it is larger than the sum of its proper divisors (5505550503).

12112211001 is a wasteful number, since it uses less digits than its factorization.

12112211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367036711.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12112211001 its reverse (10011221121), we get a palindrome (22123432122).

The spelling of 12112211001 in words is "twelve billion, one hundred twelve million, two hundred eleven thousand, one".