3600918221 has 2 divisors, whose sum is σ = 3600918222. Its totient is φ = 3600918220.

The previous prime is 3600918179. The next prime is 3600918239. The reversal of 3600918221 is 1228190063.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2744712100 + 856206121 = 52390^2 + 29261^2 .

It is a cyclic number.

It is not a de Polignac number, because 3600918221 - 2¹⁸ = 3600656077 is a prime.

It is a super-2 number, since 2×3600918221² = 25933224068659609682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3600918241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1800459110 + 1800459111.

It is an arithmetic number, because the mean of its divisors is an integer number (1800459111).

Almost surely, 2^3600918221 is an apocalyptic number.

It is an amenable number.

3600918221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3600918221 is an equidigital number, since it uses as much as digits as its factorization.

3600918221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 3600918221 is about 60007.6513538065. The cubic root of 3600918221 is about 1532.7491576756.

The spelling of 3600918221 in words is "three billion, six hundred million, nine hundred eighteen thousand, two hundred twenty-one".