120111211020011 has 4 divisors (see below), whose sum is σ = 120111276013512. Its totient is φ = 120111146026512.

The previous prime is 120111211019981. The next prime is 120111211020041. The reversal of 120111211020011 is 110020112111021.

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

It is an interprime number because it is at equal distance from previous prime (120111211019981) and next prime (120111211020041).

It is a cyclic number.

It is not a de Polignac number, because 120111211020011 - 2²² = 120111206825707 is a prime.

It is a super-2 number, since 2×120111211020011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120111211020041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29641025 + ... + 33448658.

It is an arithmetic number, because the mean of its divisors is an integer number (30027819003378).

Almost surely, 2^{120111211020011} is an apocalyptic number.

120111211020011 is a deficient number, since it is larger than the sum of its proper divisors (64993501).

120111211020011 is an equidigital number, since it uses as much as digits as its factorization.

120111211020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64993500.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 120111211020011 its reverse (110020112111021), we get a palindrome (230131323131032).

The spelling of 120111211020011 in words is "one hundred twenty trillion, one hundred eleven billion, two hundred eleven million, twenty thousand, eleven".