22442152213 has 6 divisors (see below), whose sum is σ = 24169053314. Its totient is φ = 20715334224.

The previous prime is 22442152207. The next prime is 22442152237. The reversal of 22442152213 is 31225124422.

It can be written as a sum of positive squares in 3 ways, for example, as 3409742449 + 19032409764 = 58393^2 + 137958^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22442152213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22442152253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 519363 + ... + 560911.

Almost surely, 2^22442152213 is an apocalyptic number.

It is an amenable number.

22442152213 is a deficient number, since it is larger than the sum of its proper divisors (1726901101).

22442152213 is an frugal number, since it uses more digits than its factorization.

22442152213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83111 (or 41562 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

Adding to 22442152213 its reverse (31225124422), we get a palindrome (53667276635).

The spelling of 22442152213 in words is "twenty-two billion, four hundred forty-two million, one hundred fifty-two thousand, two hundred thirteen".