12021020100111 has 16 divisors (see below), whose sum is σ = 17487414845568. Its totient is φ = 7284510602400.

The previous prime is 12021020099989. The next prime is 12021020100139. The reversal of 12021020100111 is 11100102012021.

12021020100111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12021020100111 - 2¹⁴ = 12021020083727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021020100161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23647821 + ... + 24150806.

It is an arithmetic number, because the mean of its divisors is an integer number (1092963427848).

Almost surely, 2^{12021020100111} is an apocalyptic number.

12021020100111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12021020100111 is a deficient number, since it is larger than the sum of its proper divisors (5466394745457).

12021020100111 is a wasteful number, since it uses less digits than its factorization.

12021020100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47806262.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12021020100111 its reverse (11100102012021), we get a palindrome (23121122112132).

The spelling of 12021020100111 in words is "twelve trillion, twenty-one billion, twenty million, one hundred thousand, one hundred eleven".