12011221566196 has 12 divisors (see below), whose sum is σ = 21019672283652. Its totient is φ = 6005600913728.

The previous prime is 12011221566131. The next prime is 12011221566269. The reversal of 12011221566196 is 69166512211021.

It can be written as a sum of positive squares in 2 ways, for example, as 4480478157796 + 7530743408400 = 2116714^2 + 2744220^2 .

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, 731856 + ... + 4955608.

It is an arithmetic number, because the mean of its divisors is an integer number (1751639356971).

Almost surely, 2^{12011221566196} is an apocalyptic number.

It is an amenable number.

12011221566196 is a deficient number, since it is larger than the sum of its proper divisors (9008450717456).

12011221566196 is a wasteful number, since it uses less digits than its factorization.

12011221566196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4934690 (or 4934688 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 43.

The spelling of 12011221566196 in words is "twelve trillion, eleven billion, two hundred twenty-one million, five hundred sixty-six thousand, one hundred ninety-six".