12201764220 has 36 divisors (see below), whose sum is σ = 37012018680. Its totient is φ = 3253803744.

The previous prime is 12201764213. The next prime is 12201764243. The reversal of 12201764220 is 2246710221.

12201764220 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 17 + 642 + 2 + 0 = 666.

12201764220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33893610 + ... + 33893969.

It is an arithmetic number, because the mean of its divisors is an integer number (1028111630).

Almost surely, 2^12201764220 is an apocalyptic number.

12201764220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201764220 is an abundant number, since it is smaller than the sum of its proper divisors (24810254460).

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

12201764220 is a wasteful number, since it uses less digits than its factorization.

12201764220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67787594 (or 67787589 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The spelling of 12201764220 in words is "twelve billion, two hundred one million, seven hundred sixty-four thousand, two hundred twenty".