12112202122 has 4 divisors (see below), whose sum is σ = 18168303186. Its totient is φ = 6056101060.

The previous prime is 12112202059. The next prime is 12112202171. The reversal of 12112202122 is 22120221121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12064605921 + 47596201 = 109839^2 + 6899^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12112202096 and 12112202105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3028050529 + ... + 3028050532.

Almost surely, 2^12112202122 is an apocalyptic number.

12112202122 is a deficient number, since it is larger than the sum of its proper divisors (6056101064).

12112202122 is an equidigital number, since it uses as much as digits as its factorization.

12112202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6056101063.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12112202122 its reverse (22120221121), we get a palindrome (34232423243).

The spelling of 12112202122 in words is "twelve billion, one hundred twelve million, two hundred two thousand, one hundred twenty-two".