2212444505 has 4 divisors (see below), whose sum is σ = 2654933412. Its totient is φ = 1769955600.

The previous prime is 2212444469. The next prime is 2212444517. The reversal of 2212444505 is 5054442122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1259611081 + 952833424 = 35491^2 + 30868^2 .

It is not a de Polignac number, because 2212444505 - 2²⁰ = 2211395929 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221244446 + ... + 221244455.

It is an arithmetic number, because the mean of its divisors is an integer number (663733353).

Almost surely, 2^2212444505 is an apocalyptic number.

It is an amenable number.

2212444505 is a deficient number, since it is larger than the sum of its proper divisors (442488907).

2212444505 is an equidigital number, since it uses as much as digits as its factorization.

2212444505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442488906.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 2212444505 is about 47036.6293966734. The cubic root of 2212444505 is about 1303.0391429995.

Adding to 2212444505 its reverse (5054442122), we get a palindrome (7266886627).

The spelling of 2212444505 in words is "two billion, two hundred twelve million, four hundred forty-four thousand, five hundred five".