22220311313 has 2 divisors, whose sum is σ = 22220311314. Its totient is φ = 22220311312.

The previous prime is 22220311297. The next prime is 22220311367. The reversal of 22220311313 is 31311302222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17600798224 + 4619513089 = 132668^2 + 67967^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220311313 - 2⁴ = 22220311297 is a prime.

It is not a weakly prime, because it can be changed into another prime (22220311013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110155656 + 11110155657.

It is an arithmetic number, because the mean of its divisors is an integer number (11110155657).

Almost surely, 2^22220311313 is an apocalyptic number.

It is an amenable number.

22220311313 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220311313 is an equidigital number, since it uses as much as digits as its factorization.

22220311313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22220311313 its reverse (31311302222), we get a palindrome (53531613535).

Subtracting 22220311313 from its reverse (31311302222), we obtain a palindrome (9090990909).

The spelling of 22220311313 in words is "twenty-two billion, two hundred twenty million, three hundred eleven thousand, three hundred thirteen".