120021011101111 has 8 divisors (see below), whose sum is σ = 122814398867600. Its totient is φ = 117227723401152.

The previous prime is 120021011101099. The next prime is 120021011101153. The reversal of 120021011101111 is 111101110120021.

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

It is a cyclic number.

It is not a de Polignac number, because 120021011101111 - 2¹¹ = 120021011099063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120021011101091 and 120021011101100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021011191111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22587180 + ... + 27390193.

It is an arithmetic number, because the mean of its divisors is an integer number (15351799858450).

Almost surely, 2^{120021011101111} is an apocalyptic number.

120021011101111 is a deficient number, since it is larger than the sum of its proper divisors (2793387766489).

120021011101111 is an equidigital number, since it uses as much as digits as its factorization.

120021011101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50033265.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 120021011101111 its reverse (111101110120021), we get a palindrome (231122121221132).

The spelling of 120021011101111 in words is "one hundred twenty trillion, twenty-one billion, eleven million, one hundred one thousand, one hundred eleven".