1112421121 has 16 divisors (see below), whose sum is σ = 1318141440. Its totient is φ = 918550080.

The previous prime is 1112421119. The next prime is 1112421131. The reversal of 1112421121 is 1211242111.

It is not a de Polignac number, because 1112421121 - 2¹ = 1112421119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1112421095 and 1112421104.

It is not an unprimeable number, because it can be changed into a prime (1112421131) 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 15 ways as a sum of consecutive naturals, for example, 87640 + ... + 99526.

It is an arithmetic number, because the mean of its divisors is an integer number (82383840).

Almost surely, 2^1112421121 is an apocalyptic number.

It is an amenable number.

1112421121 is a deficient number, since it is larger than the sum of its proper divisors (205720319).

1112421121 is a wasteful number, since it uses less digits than its factorization.

1112421121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12384.

The product of its digits is 32, while the sum is 16.

The square root of 1112421121 is about 33352.9776931536. The cubic root of 1112421121 is about 1036.1510593149.

Adding to 1112421121 its reverse (1211242111), we get a palindrome (2323663232).

The spelling of 1112421121 in words is "one billion, one hundred twelve million, four hundred twenty-one thousand, one hundred twenty-one".