1111322421 has 12 divisors (see below), whose sum is σ = 1751174880. Its totient is φ = 673528680.

The previous prime is 1111322393. The next prime is 1111322423. The reversal of 1111322421 is 1242231111.

1111322421 is a `hidden beast` number, since 111 + 132 + 2 + 421 = 666.

It is not a de Polignac number, because 1111322421 - 2⁵ = 1111322389 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1111322394 and 1111322403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111322423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5612641 + ... + 5612838.

It is an arithmetic number, because the mean of its divisors is an integer number (145931240).

Almost surely, 2^1111322421 is an apocalyptic number.

1111322421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111322421 is a deficient number, since it is larger than the sum of its proper divisors (639852459).

1111322421 is a wasteful number, since it uses less digits than its factorization.

1111322421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11225496 (or 11225493 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 1111322421 is about 33336.5028309809. The cubic root of 1111322421 is about 1035.8098233850.

Adding to 1111322421 its reverse (1242231111), we get a palindrome (2353553532).

The spelling of 1111322421 in words is "one billion, one hundred eleven million, three hundred twenty-two thousand, four hundred twenty-one".