120012120111 has 16 divisors (see below), whose sum is σ = 172845733760. Its totient is φ = 73630481760.

The previous prime is 120012120097. The next prime is 120012120127. The reversal of 120012120111 is 111021210021.

It is not a de Polignac number, because 120012120111 - 2⁵ = 120012120079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012120611) 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, 4635481 + ... + 4661298.

It is an arithmetic number, because the mean of its divisors is an integer number (10802858360).

Almost surely, 2^120012120111 is an apocalyptic number.

120012120111 is a deficient number, since it is larger than the sum of its proper divisors (52833613649).

120012120111 is a wasteful number, since it uses less digits than its factorization.

120012120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9297126.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 120012120111 its reverse (111021210021), we get a palindrome (231033330132).

The spelling of 120012120111 in words is "one hundred twenty billion, twelve million, one hundred twenty thousand, one hundred eleven".