12120102111 has 64 divisors (see below), whose sum is σ = 19010267136. Its totient is φ = 6800640000.

The previous prime is 12120102101. The next prime is 12120102131. The reversal of 12120102111 is 11120102121.

It is not a de Polignac number, because 12120102111 - 2⁵ = 12120102079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120102101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3145336 + ... + 3149186.

It is an arithmetic number, because the mean of its divisors is an integer number (297035424).

Almost surely, 2^12120102111 is an apocalyptic number.

12120102111 is a deficient number, since it is larger than the sum of its proper divisors (6890165025).

12120102111 is a wasteful number, since it uses less digits than its factorization.

12120102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032.

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

Adding to 12120102111 its reverse (11120102121), we get a palindrome (23240204232).

It can be divided in two parts, 1212010 and 2111, that added together give a palindrome (1214121).

The spelling of 12120102111 in words is "twelve billion, one hundred twenty million, one hundred two thousand, one hundred eleven".