12111536228 has 12 divisors (see below), whose sum is σ = 23122023792. Its totient is φ = 5505243720.

The previous prime is 12111536221. The next prime is 12111536233. The reversal of 12111536228 is 82263511121.

It is a junction number, because it is equal to n+sod(n) for n = 12111536194 and 12111536203.

It is not an unprimeable number, because it can be changed into a prime (12111536221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137631050 + ... + 137631137.

It is an arithmetic number, because the mean of its divisors is an integer number (1926835316).

Almost surely, 2^12111536228 is an apocalyptic number.

It is an amenable number.

12111536228 is a deficient number, since it is larger than the sum of its proper divisors (11010487564).

12111536228 is a wasteful number, since it uses less digits than its factorization.

12111536228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275262202 (or 275262200 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The spelling of 12111536228 in words is "twelve billion, one hundred eleven million, five hundred thirty-six thousand, two hundred twenty-eight".