12120002111 has 32 divisors (see below), whose sum is σ = 14174092800. Its totient is φ = 10150272000.

The previous prime is 12120002107. The next prime is 12120002123. The reversal of 12120002111 is 11120002121.

It is not a de Polignac number, because 12120002111 - 2² = 12120002107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12120002092 and 12120002101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120002101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27990551 + ... + 27990983.

It is an arithmetic number, because the mean of its divisors is an integer number (442940400).

Almost surely, 2^12120002111 is an apocalyptic number.

12120002111 is a deficient number, since it is larger than the sum of its proper divisors (2054090689).

12120002111 is a wasteful number, since it uses less digits than its factorization.

12120002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959.

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

Adding to 12120002111 its reverse (11120002121), we get a palindrome (23240004232).

The spelling of 12120002111 in words is "twelve billion, one hundred twenty million, two thousand, one hundred eleven".