3105314221 has 2 divisors, whose sum is σ = 3105314222. Its totient is φ = 3105314220.

The previous prime is 3105314213. The next prime is 3105314239. The reversal of 3105314221 is 1224135013.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2586841321 + 518472900 = 50861^2 + 22770^2 .

It is a cyclic number.

It is not a de Polignac number, because 3105314221 - 2³ = 3105314213 is a prime.

It is a super-2 number, since 2×3105314221² = 19285952822289673682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3105314192 and 3105314201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3105314021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1552657110 + 1552657111.

It is an arithmetic number, because the mean of its divisors is an integer number (1552657111).

Almost surely, 2^3105314221 is an apocalyptic number.

It is an amenable number.

3105314221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3105314221 is an equidigital number, since it uses as much as digits as its factorization.

3105314221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 3105314221 is about 55725.3463066853. The cubic root of 3105314221 is about 1458.9324498798.

Adding to 3105314221 its reverse (1224135013), we get a palindrome (4329449234).

The spelling of 3105314221 in words is "three billion, one hundred five million, three hundred fourteen thousand, two hundred twenty-one".