12121222434 has 8 divisors (see below), whose sum is σ = 24242444880. Its totient is φ = 4040407476.

The previous prime is 12121222427. The next prime is 12121222447. The reversal of 12121222434 is 43422212121.

12121222434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

12121222434 is an admirable number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1010101864 + ... + 1010101875.

It is an arithmetic number, because the mean of its divisors is an integer number (3030305610).

Almost surely, 2^12121222434 is an apocalyptic number.

12121222434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12121222434 is a wasteful number, since it uses less digits than its factorization.

12121222434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020203744.

The product of its digits is 1536, while the sum is 24.

Adding to 12121222434 its reverse (43422212121), we get a palindrome (55543434555).

The spelling of 12121222434 in words is "twelve billion, one hundred twenty-one million, two hundred twenty-two thousand, four hundred thirty-four".