12112122001 has 8 divisors (see below), whose sum is σ = 13847193920. Its totient is φ = 10378242288.

The previous prime is 12112121947. The next prime is 12112122017. The reversal of 12112122001 is 10022121121.

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 12112122001 - 2¹⁵ = 12112089233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12112122601) 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, 276171 + ... + 317008.

It is an arithmetic number, because the mean of its divisors is an integer number (1730899240).

Almost surely, 2^12112122001 is an apocalyptic number.

It is an amenable number.

12112122001 is a deficient number, since it is larger than the sum of its proper divisors (1735071919).

12112122001 is an equidigital number, since it uses as much as digits as its factorization.

12112122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596103.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12112122001 its reverse (10022121121), we get a palindrome (22134243122).

It can be divided in two parts, 1211 and 2122001, that added together give a palindrome (2123212).

The spelling of 12112122001 in words is "twelve billion, one hundred twelve million, one hundred twenty-two thousand, one".