22102201305 has 12 divisors (see below), whose sum is σ = 38310482340. Its totient is φ = 11787840672.

The previous prime is 22102201271. The next prime is 22102201361. The reversal of 22102201305 is 50310220122.

It can be written as a sum of positive squares in 2 ways, for example, as 8689781961 + 13412419344 = 93219^2 + 115812^2 .

It is not a de Polignac number, because 22102201305 - 2⁶ = 22102201241 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245579970 + ... + 245580059.

It is an arithmetic number, because the mean of its divisors is an integer number (3192540195).

Almost surely, 2^22102201305 is an apocalyptic number.

It is an amenable number.

22102201305 is a deficient number, since it is larger than the sum of its proper divisors (16208281035).

22102201305 is a wasteful number, since it uses less digits than its factorization.

22102201305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491160040 (or 491160037 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 22102201305 its reverse (50310220122), we get a palindrome (72412421427).

The spelling of 22102201305 in words is "twenty-two billion, one hundred two million, two hundred one thousand, three hundred five".