120012002111 has 4 divisors (see below), whose sum is σ = 120069508752. Its totient is φ = 119954495472.

The previous prime is 120012002083. The next prime is 120012002141. The reversal of 120012002111 is 111200210021.

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-120012002111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120012002092 and 120012002101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012002141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28750190 + ... + 28754363.

It is an arithmetic number, because the mean of its divisors is an integer number (30017377188).

Almost surely, 2^120012002111 is an apocalyptic number.

120012002111 is a deficient number, since it is larger than the sum of its proper divisors (57506641).

120012002111 is an equidigital number, since it uses as much as digits as its factorization.

120012002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57506640.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 120012002111 its reverse (111200210021), we get a palindrome (231212212132).

The spelling of 120012002111 in words is "one hundred twenty billion, twelve million, two thousand, one hundred eleven".