22124322013 has 4 divisors (see below), whose sum is σ = 22722276700. Its totient is φ = 21526367328.

The previous prime is 22124322007. The next prime is 22124322047. The reversal of 22124322013 is 31022342122.

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 14641726009 + 7482596004 = 121003^2 + 86502^2 .

It is a cyclic number.

It is not a de Polignac number, because 22124322013 - 2¹⁷ = 22124190941 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 (22124322113) 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, 298977288 + ... + 298977361.

It is an arithmetic number, because the mean of its divisors is an integer number (5680569175).

Almost surely, 2^22124322013 is an apocalyptic number.

It is an amenable number.

22124322013 is a deficient number, since it is larger than the sum of its proper divisors (597954687).

22124322013 is an equidigital number, since it uses as much as digits as its factorization.

22124322013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597954686.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 22124322013 its reverse (31022342122), we get a palindrome (53146664135).

The spelling of 22124322013 in words is "twenty-two billion, one hundred twenty-four million, three hundred twenty-two thousand, thirteen".