1111134221 has 8 divisors (see below), whose sum is σ = 1115073120. Its totient is φ = 1107203472.

The previous prime is 1111134187. The next prime is 1111134223. The reversal of 1111134221 is 1224311111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111134221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1111134221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111134223) 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 7 ways as a sum of consecutive naturals, for example, 392750 + ... + 395568.

It is an arithmetic number, because the mean of its divisors is an integer number (139384140).

Almost surely, 2^1111134221 is an apocalyptic number.

It is an amenable number.

1111134221 is a deficient number, since it is larger than the sum of its proper divisors (3938899).

1111134221 is an equidigital number, since it uses as much as digits as its factorization.

1111134221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075.

The product of its digits is 48, while the sum is 17.

The square root of 1111134221 is about 33333.6799798642. The cubic root of 1111134221 is about 1035.7513493813.

Adding to 1111134221 its reverse (1224311111), we get a palindrome (2335445332).

The spelling of 1111134221 in words is "one billion, one hundred eleven million, one hundred thirty-four thousand, two hundred twenty-one".