12122017432 has 32 divisors (see below), whose sum is σ = 26119285920. Its totient is φ = 5166443520.

The previous prime is 12122017403. The next prime is 12122017471. The reversal of 12122017432 is 23471022121.

It is a junction number, because it is equal to n+sod(n) for n = 12122017397 and 12122017406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 587833 + ... + 608104.

It is an arithmetic number, because the mean of its divisors is an integer number (816227685).

Almost surely, 2^12122017432 is an apocalyptic number.

It is an amenable number.

12122017432 is an abundant number, since it is smaller than the sum of its proper divisors (13997268488).

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

12122017432 is a wasteful number, since it uses less digits than its factorization.

12122017432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196131 (or 1196127 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 12122017432 its reverse (23471022121), we get a palindrome (35593039553).

The spelling of 12122017432 in words is "twelve billion, one hundred twenty-two million, seventeen thousand, four hundred thirty-two".