12020111102021 has 16 divisors (see below), whose sum is σ = 13366308372480. Its totient is φ = 10718051470320.

The previous prime is 12020111102011. The next prime is 12020111102029.

12020111102021 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 12020111102021 - 2³⁴ = 12002931232837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020111101987 and 12020111102005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020111102029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47231045 + ... + 47484858.

It is an arithmetic number, because the mean of its divisors is an integer number (835394273280).

Almost surely, 2^{12020111102021} is an apocalyptic number.

12020111102021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12020111102021 is a deficient number, since it is larger than the sum of its proper divisors (1346197270459).

12020111102021 is a wasteful number, since it uses less digits than its factorization.

12020111102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94716136.

The product of its (nonzero) digits is 16, while the sum is 14.

It can be divided in two parts, 1202011 and 1102021, that added together give a palindrome (2304032).

The spelling of 12020111102021 in words is "twelve trillion, twenty billion, one hundred eleven million, one hundred two thousand, twenty-one".