6221105361 has 6 divisors (see below), whose sum is σ = 8986041090. Its totient is φ = 4147403568.

The previous prime is 6221105353. The next prime is 6221105383. The reversal of 6221105361 is 1635011226.

6221105361 is a `hidden beast` number, since 622 + 1 + 1 + 0 + 5 + 36 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6059688336 + 161417025 = 77844^2 + 12705^2 .

It is not a de Polignac number, because 6221105361 - 2³ = 6221105353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6221105311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 345616956 + ... + 345616973.

It is an arithmetic number, because the mean of its divisors is an integer number (1497673515).

Almost surely, 2^6221105361 is an apocalyptic number.

It is an amenable number.

6221105361 is a deficient number, since it is larger than the sum of its proper divisors (2764935729).

6221105361 is a wasteful number, since it uses less digits than its factorization.

6221105361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691233935 (or 691233932 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 6221105361 is about 78873.9840568486. The cubic root of 6221105361 is about 1839.1727299752.

Adding to 6221105361 its reverse (1635011226), we get a palindrome (7856116587).

The spelling of 6221105361 in words is "six billion, two hundred twenty-one million, one hundred five thousand, three hundred sixty-one".