12229537532 has 12 divisors (see below), whose sum is σ = 21448524720. Its totient is φ = 6101387616.

The previous prime is 12229537513. The next prime is 12229537543. The reversal of 12229537532 is 23573592221.

It is a self number, because there is not a number n which added to its sum of digits gives 12229537532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3343232 + ... + 3346887.

It is an arithmetic number, because the mean of its divisors is an integer number (1787377060).

Almost surely, 2^12229537532 is an apocalyptic number.

It is an amenable number.

12229537532 is a deficient number, since it is larger than the sum of its proper divisors (9218987188).

12229537532 is a wasteful number, since it uses less digits than its factorization.

12229537532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6690580 (or 6690578 counting only the distinct ones).

The product of its digits is 226800, while the sum is 41.

The spelling of 12229537532 in words is "twelve billion, two hundred twenty-nine million, five hundred thirty-seven thousand, five hundred thirty-two".