214444422505 has 4 divisors (see below), whose sum is σ = 257333307012. Its totient is φ = 171555538000.

The previous prime is 214444422497. The next prime is 214444422547. The reversal of 214444422505 is 505224444412.

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 38973077056 + 175471345449 = 197416^2 + 418893^2 .

It is not a de Polignac number, because 214444422505 - 2³ = 214444422497 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, 21444442246 + ... + 21444442255.

It is an arithmetic number, because the mean of its divisors is an integer number (64333326753).

Almost surely, 2^214444422505 is an apocalyptic number.

It is an amenable number.

214444422505 is a deficient number, since it is larger than the sum of its proper divisors (42888884507).

214444422505 is an equidigital number, since it uses as much as digits as its factorization.

214444422505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42888884506.

The product of its (nonzero) digits is 204800, while the sum is 37.

Adding to 214444422505 its reverse (505224444412), we get a palindrome (719668866917).

The spelling of 214444422505 in words is "two hundred fourteen billion, four hundred forty-four million, four hundred twenty-two thousand, five hundred five".