12206561532 has 96 divisors (see below), whose sum is σ = 31837876224. Its totient is φ = 3607934400.

The previous prime is 12206561531. The next prime is 12206561537. The reversal of 12206561532 is 23516560221.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 12206561493 and 12206561502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12206561531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6986283 + ... + 6988029.

It is an arithmetic number, because the mean of its divisors is an integer number (331644544).

Almost surely, 2^12206561532 is an apocalyptic number.

12206561532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12206561532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15918938112).

12206561532 is an abundant number, since it is smaller than the sum of its proper divisors (19631314692).

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

12206561532 is a wasteful number, since it uses less digits than its factorization.

12206561532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039 (or 3037 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 12206561532 in words is "twelve billion, two hundred six million, five hundred sixty-one thousand, five hundred thirty-two".