12213535432 has 32 divisors (see below), whose sum is σ = 26728715520. Its totient is φ = 5123001600.

The previous prime is 12213535429. The next prime is 12213535457. The reversal of 12213535432 is 23453531221.

It is a junction number, because it is equal to n+sod(n) for n = 12213535394 and 12213535403.

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, 2317569 + ... + 2322832.

It is an arithmetic number, because the mean of its divisors is an integer number (835272360).

Almost surely, 2^12213535432 is an apocalyptic number.

It is an amenable number.

12213535432 is an abundant number, since it is smaller than the sum of its proper divisors (14515180088).

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

12213535432 is a wasteful number, since it uses less digits than its factorization.

12213535432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4640461 (or 4640457 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The spelling of 12213535432 in words is "twelve billion, two hundred thirteen million, five hundred thirty-five thousand, four hundred thirty-two".