2220241121 has 4 divisors (see below), whose sum is σ = 2537418432. Its totient is φ = 1903063812.

The previous prime is 2220241007. The next prime is 2220241193. The reversal of 2220241121 is 1211420222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1211420222 = 2 ⋅605710111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220241121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2220241121.

It is not an unprimeable number, because it can be changed into a prime (2220241321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158588645 + ... + 158588658.

It is an arithmetic number, because the mean of its divisors is an integer number (634354608).

Almost surely, 2^2220241121 is an apocalyptic number.

It is an amenable number.

2220241121 is a deficient number, since it is larger than the sum of its proper divisors (317177311).

2220241121 is an equidigital number, since it uses as much as digits as its factorization.

2220241121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317177310.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2220241121 is about 47119.4346421941. The cubic root of 2220241121 is about 1304.5679776421.

Adding to 2220241121 its reverse (1211420222), we get a palindrome (3431661343).

The spelling of 2220241121 in words is "two billion, two hundred twenty million, two hundred forty-one thousand, one hundred twenty-one".