1112322121 has 4 divisors (see below), whose sum is σ = 1177752852. Its totient is φ = 1046891392.

The previous prime is 1112322109. The next prime is 1112322131. The reversal of 1112322121 is 1212232111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1009015225 + 103306896 = 31765^2 + 10164^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112322121 - 2¹³ = 1112313929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112322095 and 1112322104.

It is not an unprimeable number, because it can be changed into a prime (1112322131) 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 3 ways as a sum of consecutive naturals, for example, 32715340 + ... + 32715373.

It is an arithmetic number, because the mean of its divisors is an integer number (294438213).

Almost surely, 2^1112322121 is an apocalyptic number.

It is an amenable number.

1112322121 is a deficient number, since it is larger than the sum of its proper divisors (65430731).

1112322121 is an equidigital number, since it uses as much as digits as its factorization.

1112322121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65430730.

The product of its digits is 48, while the sum is 16.

The square root of 1112322121 is about 33351.4935347729. The cubic root of 1112322121 is about 1036.1203209563.

Adding to 1112322121 its reverse (1212232111), we get a palindrome (2324554232).

It can be divided in two parts, 111 and 2322121, that added together give a palindrome (2322232).

The spelling of 1112322121 in words is "one billion, one hundred twelve million, three hundred twenty-two thousand, one hundred twenty-one".