22013322257 has 2 divisors, whose sum is σ = 22013322258. Its totient is φ = 22013322256.

The previous prime is 22013322217. The next prime is 22013322277. The reversal of 22013322257 is 75222331022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19768078801 + 2245243456 = 140599^2 + 47384^2 .

It is a cyclic number.

It is not a de Polignac number, because 22013322257 - 2¹² = 22013318161 is a prime.

It is not a weakly prime, because it can be changed into another prime (22013322217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006661128 + 11006661129.

It is an arithmetic number, because the mean of its divisors is an integer number (11006661129).

Almost surely, 2^22013322257 is an apocalyptic number.

It is an amenable number.

22013322257 is a deficient number, since it is larger than the sum of its proper divisors (1).

22013322257 is an equidigital number, since it uses as much as digits as its factorization.

22013322257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 29.

Adding to 22013322257 its reverse (75222331022), we get a palindrome (97235653279).

The spelling of 22013322257 in words is "twenty-two billion, thirteen million, three hundred twenty-two thousand, two hundred fifty-seven".