12201011121986 has 4 divisors (see below), whose sum is σ = 18301516682982. Its totient is φ = 6100505560992.

The previous prime is 12201011121967. The next prime is 12201011122039. The reversal of 12201011121986 is 68912111010221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12028889856361 + 172121265625 = 3468269^2 + 414875^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3050252780495 + ... + 3050252780498.

Almost surely, 2^{12201011121986} is an apocalyptic number.

12201011121986 is a deficient number, since it is larger than the sum of its proper divisors (6100505560996).

12201011121986 is an equidigital number, since it uses as much as digits as its factorization.

12201011121986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100505560995.

The product of its (nonzero) digits is 3456, while the sum is 35.

The spelling of 12201011121986 in words is "twelve trillion, two hundred one billion, eleven million, one hundred twenty-one thousand, nine hundred eighty-six".