22113356873 has 2 divisors, whose sum is σ = 22113356874. Its totient is φ = 22113356872.

The previous prime is 22113356861. The next prime is 22113356939. The reversal of 22113356873 is 37865331122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14360906569 + 7752450304 = 119837^2 + 88048^2 .

It is a cyclic number.

It is not a de Polignac number, because 22113356873 - 2⁴ = 22113356857 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22113356873.

It is not a weakly prime, because it can be changed into another prime (22113356803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056678436 + 11056678437.

It is an arithmetic number, because the mean of its divisors is an integer number (11056678437).

Almost surely, 2^22113356873 is an apocalyptic number.

It is an amenable number.

22113356873 is a deficient number, since it is larger than the sum of its proper divisors (1).

22113356873 is an equidigital number, since it uses as much as digits as its factorization.

22113356873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

Adding to 22113356873 its reverse (37865331122), we get a palindrome (59978687995).

The spelling of 22113356873 in words is "twenty-two billion, one hundred thirteen million, three hundred fifty-six thousand, eight hundred seventy-three".