12121303214 has 4 divisors (see below), whose sum is σ = 18181954824. Its totient is φ = 6060651606.

The previous prime is 12121303199. The next prime is 12121303219. The reversal of 12121303214 is 41230312121.

12121303214 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41230312121 = 157 ⋅262613453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121303219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030325802 + ... + 3030325805.

It is an arithmetic number, because the mean of its divisors is an integer number (4545488706).

Almost surely, 2^12121303214 is an apocalyptic number.

12121303214 is a deficient number, since it is larger than the sum of its proper divisors (6060651610).

12121303214 is an equidigital number, since it uses as much as digits as its factorization.

12121303214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060651609.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12121303214 its reverse (41230312121), we get a palindrome (53351615335).

The spelling of 12121303214 in words is "twelve billion, one hundred twenty-one million, three hundred three thousand, two hundred fourteen".