12222123101 has 4 divisors (see below), whose sum is σ = 12376833600. Its totient is φ = 12067412604.

The previous prime is 12222123097. The next prime is 12222123107. The reversal of 12222123101 is 10132122221.

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 12222123101 - 2² = 12222123097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12222123101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222123107) 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, 77355131 + ... + 77355288.

It is an arithmetic number, because the mean of its divisors is an integer number (3094208400).

Almost surely, 2^12222123101 is an apocalyptic number.

It is an amenable number.

12222123101 is a deficient number, since it is larger than the sum of its proper divisors (154710499).

12222123101 is an equidigital number, since it uses as much as digits as its factorization.

12222123101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154710498.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12222123101 its reverse (10132122221), we get a palindrome (22354245322).

The spelling of 12222123101 in words is "twelve billion, two hundred twenty-two million, one hundred twenty-three thousand, one hundred one".