120211121111011 has 24 divisors (see below), whose sum is σ = 141746945826960. Its totient is φ = 101638674648000.

The previous prime is 120211121110991. The next prime is 120211121111077. The reversal of 120211121111011 is 110111121112021.

It is not a de Polignac number, because 120211121111011 - 2¹⁹ = 120211120586723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120211121111311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43817385 + ... + 46479946.

It is an arithmetic number, because the mean of its divisors is an integer number (5906122742790).

Almost surely, 2^{120211121111011} is an apocalyptic number.

120211121111011 is a deficient number, since it is larger than the sum of its proper divisors (21535824715949).

120211121111011 is a wasteful number, since it uses less digits than its factorization.

120211121111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90297715 (or 90297708 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 120211121111011 its reverse (110111121112021), we get a palindrome (230322242223032).

The spelling of 120211121111011 in words is "one hundred twenty trillion, two hundred eleven billion, one hundred twenty-one million, one hundred eleven thousand, eleven".