12112101001 has 32 divisors (see below), whose sum is σ = 16969494528. Its totient is φ = 8333202240.

The previous prime is 12112100999. The next prime is 12112101031. The reversal of 12112101001 is 10010121121.

It is not a de Polignac number, because 12112101001 - 2¹ = 12112100999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12112101031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 240021 + ... + 286066.

It is an arithmetic number, because the mean of its divisors is an integer number (530296704).

Almost surely, 2^12112101001 is an apocalyptic number.

12112101001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12112101001 is a deficient number, since it is larger than the sum of its proper divisors (4857393527).

12112101001 is a wasteful number, since it uses less digits than its factorization.

12112101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526141.

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

Adding to 12112101001 its reverse (10010121121), we get a palindrome (22122222122).

The spelling of 12112101001 in words is "twelve billion, one hundred twelve million, one hundred one thousand, one".