12112211551214 has 4 divisors (see below), whose sum is σ = 18168317326824. Its totient is φ = 6056105775606.

The previous prime is 12112211551183. The next prime is 12112211551217. The reversal of 12112211551214 is 41215511221121.

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

It is a super-2 number, since 2×12112211551214² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112211551217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3028052887802 + ... + 3028052887805.

It is an arithmetic number, because the mean of its divisors is an integer number (4542079331706).

Almost surely, 2^{12112211551214} is an apocalyptic number.

12112211551214 is a deficient number, since it is larger than the sum of its proper divisors (6056105775610).

12112211551214 is an equidigital number, since it uses as much as digits as its factorization.

12112211551214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6056105775609.

The product of its digits is 1600, while the sum is 29.

Adding to 12112211551214 its reverse (41215511221121), we get a palindrome (53327722772335).

The spelling of 12112211551214 in words is "twelve trillion, one hundred twelve billion, two hundred eleven million, five hundred fifty-one thousand, two hundred fourteen".