120021020110011 has 4 divisors (see below), whose sum is σ = 160028026813352. Its totient is φ = 80014013406672.

The previous prime is 120021020109983. The next prime is 120021020110049. The reversal of 120021020110011 is 110011020120021.

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

It is not a de Polignac number, because 120021020110011 - 2¹⁹ = 120021019585723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120021020110711) 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 3 ways as a sum of consecutive naturals, for example, 20003503351666 + ... + 20003503351671.

It is an arithmetic number, because the mean of its divisors is an integer number (40007006703338).

Almost surely, 2^{120021020110011} is an apocalyptic number.

120021020110011 is a deficient number, since it is larger than the sum of its proper divisors (40007006703341).

120021020110011 is an equidigital number, since it uses as much as digits as its factorization.

120021020110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40007006703340.

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

Adding to 120021020110011 its reverse (110011020120021), we get a palindrome (230032040230032).

The spelling of 120021020110011 in words is "one hundred twenty trillion, twenty-one billion, twenty million, one hundred ten thousand, eleven".