1112022121 has 8 divisors (see below), whose sum is σ = 1296819200. Its totient is φ = 953161524.

The previous prime is 1112022089. The next prime is 1112022127. The reversal of 1112022121 is 1212202111.

It is not a de Polignac number, because 1112022121 - 2⁵ = 1112022089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112022127) 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 7 ways as a sum of consecutive naturals, for example, 1620681 + ... + 1621366.

It is an arithmetic number, because the mean of its divisors is an integer number (162102400).

Almost surely, 2^1112022121 is an apocalyptic number.

It is an amenable number.

1112022121 is a deficient number, since it is larger than the sum of its proper divisors (184797079).

1112022121 is an frugal number, since it uses more digits than its factorization.

1112022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242068 (or 3242054 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1112022121 is about 33346.9956817702. The cubic root of 1112022121 is about 1036.0271632761.

Adding to 1112022121 its reverse (1212202111), we get a palindrome (2324224232).

The spelling of 1112022121 in words is "one billion, one hundred twelve million, twenty-two thousand, one hundred twenty-one".