12020001111021 has 8 divisors (see below), whose sum is σ = 16028753084224. Its totient is φ = 8012291605920.

The previous prime is 12020001110987. The next prime is 12020001111071. The reversal of 12020001111021 is 12011110002021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12020001111021 - 2¹⁴ = 12020001094637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020001110988 and 12020001111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020001111071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260590120 + ... + 260636241.

It is an arithmetic number, because the mean of its divisors is an integer number (2003594135528).

Almost surely, 2^{12020001111021} is an apocalyptic number.

It is an amenable number.

12020001111021 is a deficient number, since it is larger than the sum of its proper divisors (4008751973203).

12020001111021 is an equidigital number, since it uses as much as digits as its factorization.

12020001111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521234051.

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

Adding to 12020001111021 its reverse (12011110002021), we get a palindrome (24031111113042).

The spelling of 12020001111021 in words is "twelve trillion, twenty billion, one million, one hundred eleven thousand, twenty-one".