120012211122111 has 48 divisors (see below), whose sum is σ = 223578503516160. Its totient is φ = 60194212464960.

The previous prime is 120012211122107. The next prime is 120012211122187. The reversal of 120012211122111 is 111221112210021.

It is a happy number.

120012211122111 is a `hidden beast` number, since 1 + 200 + 1 + 221 + 11 + 221 + 11 = 666.

It is not a de Polignac number, because 120012211122111 - 2² = 120012211122107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012211122211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2985803935 + ... + 2985844128.

It is an arithmetic number, because the mean of its divisors is an integer number (4657885489920).

Almost surely, 2^{120012211122111} is an apocalyptic number.

120012211122111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120012211122111 is a deficient number, since it is larger than the sum of its proper divisors (103566292394049).

120012211122111 is a wasteful number, since it uses less digits than its factorization.

120012211122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5971648116 (or 5971648113 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 120012211122111 its reverse (111221112210021), we get a palindrome (231233323332132).

The spelling of 120012211122111 in words is "one hundred twenty trillion, twelve billion, two hundred eleven million, one hundred twenty-two thousand, one hundred eleven".