2112230121 has 8 divisors (see below), whose sum is σ = 2833585440. Its totient is φ = 1399514112.

The previous prime is 2112230117. The next prime is 2112230177. The reversal of 2112230121 is 1210322112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2112230121 - 2² = 2112230117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2112230121.

It is not an unprimeable number, because it can be changed into a prime (2112230111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2159256 + ... + 2160233.

It is an arithmetic number, because the mean of its divisors is an integer number (354198180).

Almost surely, 2^2112230121 is an apocalyptic number.

It is an amenable number.

2112230121 is a deficient number, since it is larger than the sum of its proper divisors (721355319).

2112230121 is a wasteful number, since it uses less digits than its factorization.

2112230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319655.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2112230121 is about 45959.0047868750. The cubic root of 2112230121 is about 1283.0603288544.

Adding to 2112230121 its reverse (1210322112), we get a palindrome (3322552233).

The spelling of 2112230121 in words is "two billion, one hundred twelve million, two hundred thirty thousand, one hundred twenty-one".