12201535556 has 24 divisors (see below), whose sum is σ = 24863509440. Its totient is φ = 5130564192.

The previous prime is 12201535531. The next prime is 12201535561. The reversal of 12201535556 is 65553510221.

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, 4109546 + ... + 4112513.

It is an arithmetic number, because the mean of its divisors is an integer number (1035979560).

Almost surely, 2^12201535556 is an apocalyptic number.

It is an amenable number.

12201535556 is an abundant number, since it is smaller than the sum of its proper divisors (12661973884).

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

12201535556 is a wasteful number, since it uses less digits than its factorization.

12201535556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8222123 (or 8222121 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 12201535556 in words is "twelve billion, two hundred one million, five hundred thirty-five thousand, five hundred fifty-six".