1111411221 has 8 divisors (see below), whose sum is σ = 1546311360. Its totient is φ = 708725952.

The previous prime is 1111411201. The next prime is 1111411229. The reversal of 1111411221 is 1221141111.

It is a happy number.

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

It is not a de Polignac number, because 1111411221 - 2¹⁰ = 1111410197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111411221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111411229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8053636 + ... + 8053773.

It is an arithmetic number, because the mean of its divisors is an integer number (193288920).

Almost surely, 2^1111411221 is an apocalyptic number.

It is an amenable number.

1111411221 is a deficient number, since it is larger than the sum of its proper divisors (434900139).

1111411221 is a wasteful number, since it uses less digits than its factorization.

1111411221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16107435.

The product of its digits is 16, while the sum is 15.

The square root of 1111411221 is about 33337.8346777351. The cubic root of 1111411221 is about 1035.8374113771.

Adding to 1111411221 its reverse (1221141111), we get a palindrome (2332552332).

The spelling of 1111411221 in words is "one billion, one hundred eleven million, four hundred eleven thousand, two hundred twenty-one".