22013322217 has 2 divisors, whose sum is σ = 22013322218. Its totient is φ = 22013322216.

The previous prime is 22013322209. The next prime is 22013322257. The reversal of 22013322217 is 71222331022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21401056681 + 612265536 = 146291^2 + 24744^2 .

It is a cyclic number.

It is not a de Polignac number, because 22013322217 - 2³ = 22013322209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22013322191 and 22013322200.

It is not a weakly prime, because it can be changed into another prime (22013322257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006661108 + 11006661109.

It is an arithmetic number, because the mean of its divisors is an integer number (11006661109).

Almost surely, 2^22013322217 is an apocalyptic number.

It is an amenable number.

22013322217 is a deficient number, since it is larger than the sum of its proper divisors (1).

22013322217 is an equidigital number, since it uses as much as digits as its factorization.

22013322217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 22013322217 its reverse (71222331022), we get a palindrome (93235653239).

The spelling of 22013322217 in words is "twenty-two billion, thirteen million, three hundred twenty-two thousand, two hundred seventeen".