22220002313 has 8 divisors (see below), whose sum is σ = 22626043656. Its totient is φ = 21815308800.

The previous prime is 22220002271. The next prime is 22220002373. The reversal of 22220002313 is 31320002222.

It can be written as a sum of positive squares in 4 ways, for example, as 1429822969 + 20790179344 = 37813^2 + 144188^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22220002313 - 2⁶ = 22220002249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22220002291 and 22220002300.

It is not an unprimeable number, because it can be changed into a prime (22220002373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303656 + ... + 369657.

It is an arithmetic number, because the mean of its divisors is an integer number (2828255457).

Almost surely, 2^22220002313 is an apocalyptic number.

It is an amenable number.

22220002313 is a deficient number, since it is larger than the sum of its proper divisors (406041343).

22220002313 is an equidigital number, since it uses as much as digits as its factorization.

22220002313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673915.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22220002313 its reverse (31320002222), we get a palindrome (53540004535).

Subtracting 22220002313 from its reverse (31320002222), we obtain a palindrome (9099999909).

The spelling of 22220002313 in words is "twenty-two billion, two hundred twenty million, two thousand, three hundred thirteen".