2204412121 has 4 divisors (see below), whose sum is σ = 2204511232. Its totient is φ = 2204313012.

The previous prime is 2204412079. The next prime is 2204412131. The reversal of 2204412121 is 1212144022.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2204412121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2204412131) 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, 1000 + ... + 66406.

It is an arithmetic number, because the mean of its divisors is an integer number (551127808).

Almost surely, 2^2204412121 is an apocalyptic number.

It is an amenable number.

2204412121 is a deficient number, since it is larger than the sum of its proper divisors (99111).

2204412121 is an equidigital number, since it uses as much as digits as its factorization.

2204412121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99110.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2204412121 is about 46951.1674082764. The cubic root of 2204412121 is about 1301.4603157888.

Adding to 2204412121 its reverse (1212144022), we get a palindrome (3416556143).

The spelling of 2204412121 in words is "two billion, two hundred four million, four hundred twelve thousand, one hundred twenty-one".