12112222101 has 16 divisors (see below), whose sum is σ = 19542409344. Its totient is φ = 6514136064.

The previous prime is 12112222097. The next prime is 12112222153. The reversal of 12112222101 is 10122221121.

It is not a de Polignac number, because 12112222101 - 2² = 12112222097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112222601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16963540 + ... + 16964253.

It is an arithmetic number, because the mean of its divisors is an integer number (1221400584).

Almost surely, 2^12112222101 is an apocalyptic number.

It is an amenable number.

12112222101 is a deficient number, since it is larger than the sum of its proper divisors (7430187243).

12112222101 is a wasteful number, since it uses less digits than its factorization.

12112222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33927820.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12112222101 its reverse (10122221121), we get a palindrome (22234443222).

The spelling of 12112222101 in words is "twelve billion, one hundred twelve million, two hundred twenty-two thousand, one hundred one".