1112232121 has 48 divisors (see below), whose sum is σ = 1524039552. Its totient is φ = 789719040.

The previous prime is 1112232103. The next prime is 1112232139. The reversal of 1112232121 is 1212322111.

It is an interprime number because it is at equal distance from previous prime (1112232103) and next prime (1112232139).

It is not a de Polignac number, because 1112232121 - 2¹⁵ = 1112199353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1112232095 and 1112232104.

It is not an unprimeable number, because it can be changed into a prime (1112232101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 913305 + ... + 914521.

It is an arithmetic number, because the mean of its divisors is an integer number (31750824).

Almost surely, 2^1112232121 is an apocalyptic number.

1112232121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1112232121 is a deficient number, since it is larger than the sum of its proper divisors (411807431).

1112232121 is a wasteful number, since it uses less digits than its factorization.

1112232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342 (or 1331 counting only the distinct ones).

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

The square root of 1112232121 is about 33350.1442425666. The cubic root of 1112232121 is about 1036.0923754112.

Adding to 1112232121 its reverse (1212322111), we get a palindrome (2324554232).

The spelling of 1112232121 in words is "one billion, one hundred twelve million, two hundred thirty-two thousand, one hundred twenty-one".