2201221357 has 2 divisors, whose sum is σ = 2201221358. Its totient is φ = 2201221356.

The previous prime is 2201221339. The next prime is 2201221361. The reversal of 2201221357 is 7531221022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1649253321 + 551968036 = 40611^2 + 23494^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201221357 - 2⁷ = 2201221229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201221327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100610678 + 1100610679.

It is an arithmetic number, because the mean of its divisors is an integer number (1100610679).

Almost surely, 2^2201221357 is an apocalyptic number.

It is an amenable number.

2201221357 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201221357 is an equidigital number, since it uses as much as digits as its factorization.

2201221357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2201221357 is about 46917.1755010892. The cubic root of 2201221357 is about 1300.8320820942.

Adding to 2201221357 its reverse (7531221022), we get a palindrome (9732442379).

The spelling of 2201221357 in words is "two billion, two hundred one million, two hundred twenty-one thousand, three hundred fifty-seven".