12111925 has 24 divisors (see below), whose sum is σ = 17437376. Its totient is φ = 8173440.

The previous prime is 12111923. The next prime is 12111929. The reversal of 12111925 is 52911121.

It is not a de Polignac number, because 12111925 - 2¹ = 12111923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12111896 and 12111905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11209 + ... + 12241.

Almost surely, 2^12111925 is an apocalyptic number.

It is an amenable number.

12111925 is a deficient number, since it is larger than the sum of its proper divisors (5325451).

12111925 is a wasteful number, since it uses less digits than its factorization.

12111925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117 (or 1112 counting only the distinct ones).

The product of its digits is 180, while the sum is 22.

The square root of 12111925 is about 3480.2191022980. The cubic root of 12111925 is about 229.6524366085.

It can be divided in two parts, 1211 and 1925, that added together give a square (3136 = 56²).

The spelling of 12111925 in words is "twelve million, one hundred eleven thousand, nine hundred twenty-five".