1113222321 has 6 divisors (see below), whose sum is σ = 1607987810. Its totient is φ = 742148208.

The previous prime is 1113222317. The next prime is 1113222347. The reversal of 1113222321 is 1232223111.

1113222321 is a `hidden beast` number, since 111 + 322 + 232 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 797271696 + 315950625 = 28236^2 + 17775^2 .

It is not a de Polignac number, because 1113222321 - 2² = 1113222317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1113222294 and 1113222303.

It is not an unprimeable number, because it can be changed into a prime (1113222371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61845676 + ... + 61845693.

Almost surely, 2^1113222321 is an apocalyptic number.

It is an amenable number.

1113222321 is a deficient number, since it is larger than the sum of its proper divisors (494765489).

1113222321 is a wasteful number, since it uses less digits than its factorization.

1113222321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123691375 (or 123691372 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1113222321 is about 33364.9864528670. The cubic root of 1113222321 is about 1036.3997556013.

Adding to 1113222321 its reverse (1232223111), we get a palindrome (2345445432).

The spelling of 1113222321 in words is "one billion, one hundred thirteen million, two hundred twenty-two thousand, three hundred twenty-one".