111421244 has 24 divisors (see below), whose sum is σ = 223910400. Its totient is φ = 47980080.

The previous prime is 111421243. The next prime is 111421253. The reversal of 111421244 is 442124111.

It is a super-2 number, since 2×111421244² = 24829387229015072, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111421243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65804 + ... + 67475.

It is an arithmetic number, because the mean of its divisors is an integer number (9329600).

Almost surely, 2^111421244 is an apocalyptic number.

It is an amenable number.

111421244 is an abundant number, since it is smaller than the sum of its proper divisors (112489156).

111421244 is a wasteful number, since it uses less digits than its factorization.

111421244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133313 (or 133311 counting only the distinct ones).

The product of its digits is 256, while the sum is 20.

The square root of 111421244 is about 10555.6261775415. The cubic root of 111421244 is about 481.1967302819.

Adding to 111421244 its reverse (442124111), we get a palindrome (553545355).

The spelling of 111421244 in words is "one hundred eleven million, four hundred twenty-one thousand, two hundred forty-four".