22301000221 has 2 divisors, whose sum is σ = 22301000222. Its totient is φ = 22301000220.

The previous prime is 22301000201. The next prime is 22301000263. The reversal of 22301000221 is 12200010322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12541536121 + 9759464100 = 111989^2 + 98790^2 .

It is a cyclic number.

It is not a de Polignac number, because 22301000221 - 2¹³ = 22300992029 is a prime.

It is a super-2 number, since 2×22301000221² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22301000201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11150500110 + 11150500111.

It is an arithmetic number, because the mean of its divisors is an integer number (11150500111).

Almost surely, 2^22301000221 is an apocalyptic number.

It is an amenable number.

22301000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

22301000221 is an equidigital number, since it uses as much as digits as its factorization.

22301000221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 22301000221 its reverse (12200010322), we get a palindrome (34501010543).

The spelling of 22301000221 in words is "twenty-two billion, three hundred one million, two hundred twenty-one", and thus it is an aban number.