120012101111 has 16 divisors (see below), whose sum is σ = 138321082368. Its totient is φ = 101997900000.

The previous prime is 120012101057. The next prime is 120012101113. The reversal of 120012101111 is 111101210021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120012101111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120012101092 and 120012101101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012101113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238661 + ... + 544961.

It is an arithmetic number, because the mean of its divisors is an integer number (8645067648).

Almost surely, 2^120012101111 is an apocalyptic number.

120012101111 is a deficient number, since it is larger than the sum of its proper divisors (18308981257).

120012101111 is a wasteful number, since it uses less digits than its factorization.

120012101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306782.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 120012101111 its reverse (111101210021), we get a palindrome (231113311132).

It can be divided in two parts, 12001 and 2101111, that added together give a palindrome (2113112).

The spelling of 120012101111 in words is "one hundred twenty billion, twelve million, one hundred one thousand, one hundred eleven".