2213120449 has 4 divisors (see below), whose sum is σ = 2213544960. Its totient is φ = 2212695940.

The previous prime is 2213120423. The next prime is 2213120557. The reversal of 2213120449 is 9440213122.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2213120449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2213126449) 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, 204337 + ... + 214894.

It is an arithmetic number, because the mean of its divisors is an integer number (553386240).

Almost surely, 2^2213120449 is an apocalyptic number.

It is an amenable number.

2213120449 is a deficient number, since it is larger than the sum of its proper divisors (424511).

2213120449 is an equidigital number, since it uses as much as digits as its factorization.

2213120449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424510.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2213120449 is about 47043.8141417126. The cubic root of 2213120449 is about 1303.1718305924.

The spelling of 2213120449 in words is "two billion, two hundred thirteen million, one hundred twenty thousand, four hundred forty-nine".