120111201210011 has 4 divisors (see below), whose sum is σ = 131030401320024. Its totient is φ = 109192001100000.

The previous prime is 120111201210001. The next prime is 120111201210019. The reversal of 120111201210011 is 110012102111021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120111201210011 is a prime.

It is a super-2 number, since 2×120111201210011² (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 (120111201210019) 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, 5459600054990 + ... + 5459600055011.

It is an arithmetic number, because the mean of its divisors is an integer number (32757600330006).

Almost surely, 2^{120111201210011} is an apocalyptic number.

120111201210011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120111201210011 is a deficient number, since it is larger than the sum of its proper divisors (10919200110013).

120111201210011 is a wasteful number, since it uses less digits than its factorization.

120111201210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10919200110012.

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

Adding to 120111201210011 its reverse (110012102111021), we get a palindrome (230123303321032).

The spelling of 120111201210011 in words is "one hundred twenty trillion, one hundred eleven billion, two hundred one million, two hundred ten thousand, eleven".