12021111111986 has 16 divisors (see below), whose sum is σ = 19708235297280. Its totient is φ = 5474509803840.

The previous prime is 12021111111973. The next prime is 12021111112039. The reversal of 12021111111986 is 68911111112021.

It is a super-2 number, since 2×12021111111986² (a number of 27 digits) contains 22 as substring.

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, 5702613326 + ... + 5702615433.

It is an arithmetic number, because the mean of its divisors is an integer number (1231764706080).

Almost surely, 2^{12021111111986} is an apocalyptic number.

12021111111986 is a deficient number, since it is larger than the sum of its proper divisors (7687124185294).

12021111111986 is a wasteful number, since it uses less digits than its factorization.

12021111111986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11405228809.

The product of its (nonzero) digits is 1728, while the sum is 35.

Adding to 12021111111986 its sum of digits (35), we get a palindrome (12021111112021).

The spelling of 12021111111986 in words is "twelve trillion, twenty-one billion, one hundred eleven million, one hundred eleven thousand, nine hundred eighty-six".