12020223234 has 32 divisors (see below), whose sum is σ = 24116533056. Its totient is φ = 3994082240.

The previous prime is 12020223227. The next prime is 12020223277. The reversal of 12020223234 is 43232202021.

It is a self number, because there is not a number n which added to its sum of digits gives 12020223234.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2889484 + ... + 2893640.

It is an arithmetic number, because the mean of its divisors is an integer number (753641658).

Almost surely, 2^12020223234 is an apocalyptic number.

12020223234 is an abundant number, since it is smaller than the sum of its proper divisors (12096309822).

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

12020223234 is a wasteful number, since it uses less digits than its factorization.

12020223234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5570.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 12020223234 its reverse (43232202021), we get a palindrome (55252425255).

The spelling of 12020223234 in words is "twelve billion, twenty million, two hundred twenty-three thousand, two hundred thirty-four".