12122123252 has 48 divisors (see below), whose sum is σ = 22191079680. Its totient is φ = 5789596800.

The previous prime is 12122123239. The next prime is 12122123269. The reversal of 12122123252 is 25232122121.

It is a congruent number.

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, 1498274 + ... + 1506342.

It is an arithmetic number, because the mean of its divisors is an integer number (462314160).

Almost surely, 2^12122123252 is an apocalyptic number.

It is an amenable number.

12122123252 is a deficient number, since it is larger than the sum of its proper divisors (10068956428).

12122123252 is a wasteful number, since it uses less digits than its factorization.

12122123252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8312 (or 8310 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

Adding to 12122123252 its reverse (25232122121), we get a palindrome (37354245373).

The spelling of 12122123252 in words is "twelve billion, one hundred twenty-two million, one hundred twenty-three thousand, two hundred fifty-two".