2112201121 has 16 divisors (see below), whose sum is σ = 2176312320. Its totient is φ = 2049184080.

The previous prime is 2112201097. The next prime is 2112201127. The reversal of 2112201121 is 1211022112.

It is a cyclic number.

It is not a de Polignac number, because 2112201121 - 2⁹ = 2112200609 is a prime.

It is a super-2 number, since 2×2112201121² = 8922787151107313282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112201127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3056386 + ... + 3057076.

It is an arithmetic number, because the mean of its divisors is an integer number (136019520).

Almost surely, 2^2112201121 is an apocalyptic number.

It is an amenable number.

2112201121 is a deficient number, since it is larger than the sum of its proper divisors (64111199).

2112201121 is a wasteful number, since it uses less digits than its factorization.

2112201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356.

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

The square root of 2112201121 is about 45958.6892872284. The cubic root of 2112201121 is about 1283.0544568743.

Adding to 2112201121 its reverse (1211022112), we get a palindrome (3323223233).

The spelling of 2112201121 in words is "two billion, one hundred twelve million, two hundred one thousand, one hundred twenty-one".