1122320421 has 32 divisors (see below), whose sum is σ = 1702149120. Its totient is φ = 730596672.

The previous prime is 1122320413. The next prime is 1122320447. The reversal of 1122320421 is 1240232211.

It is a happy number.

1122320421 is a `hidden beast` number, since 1 + 1 + 223 + 20 + 421 = 666.

It is not a de Polignac number, because 1122320421 - 2³ = 1122320413 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1122320394 and 1122320403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122310421) 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 31 ways as a sum of consecutive naturals, for example, 317355 + ... + 320871.

It is an arithmetic number, because the mean of its divisors is an integer number (53192160).

Almost surely, 2^1122320421 is an apocalyptic number.

It is an amenable number.

1122320421 is a deficient number, since it is larger than the sum of its proper divisors (579828699).

1122320421 is a wasteful number, since it uses less digits than its factorization.

1122320421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3802 (or 3796 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1122320421 is about 33501.0510432136. The cubic root of 1122320421 is about 1039.2155144786.

Adding to 1122320421 its reverse (1240232211), we get a palindrome (2362552632).

The spelling of 1122320421 in words is "one billion, one hundred twenty-two million, three hundred twenty thousand, four hundred twenty-one".