12111242 has 64 divisors (see below), whose sum is σ = 23514624. Its totient is φ = 4592640.

The previous prime is 12111221. The next prime is 12111263. The reversal of 12111242 is 24211121.

It is a happy number.

12111242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12111221) and next prime (12111263).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228488 + ... + 228540.

It is an arithmetic number, because the mean of its divisors is an integer number (367416).

Almost surely, 2^12111242 is an apocalyptic number.

12111242 is a deficient number, since it is larger than the sum of its proper divisors (11403382).

12111242 is a wasteful number, since it uses less digits than its factorization.

12111242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143.

The product of its digits is 32, while the sum is 14.

The square root of 12111242 is about 3480.1209749088. The cubic root of 12111242 is about 229.6481197730.

Adding to 12111242 its reverse (24211121), we get a palindrome (36322363).

The spelling of 12111242 in words is "twelve million, one hundred eleven thousand, two hundred forty-two".