56221228611 has 6 divisors (see below), whose sum is σ = 81208441340. Its totient is φ = 37480819068.

The previous prime is 56221228579. The next prime is 56221228633. The reversal of 56221228611 is 11682212265.

56221228611 is a `hidden beast` number, since 5 + 6 + 2 + 2 + 12 + 28 + 611 = 666.

It is not a de Polignac number, because 56221228611 - 2⁵ = 56221228579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56221228111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3123401581 + ... + 3123401598.

Almost surely, 2^56221228611 is an apocalyptic number.

56221228611 is a deficient number, since it is larger than the sum of its proper divisors (24987212729).

56221228611 is a wasteful number, since it uses less digits than its factorization.

56221228611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6246803185 (or 6246803182 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The spelling of 56221228611 in words is "fifty-six billion, two hundred twenty-one million, two hundred twenty-eight thousand, six hundred eleven".