221050051105 has 16 divisors (see below), whose sum is σ = 285964514640. Its totient is φ = 163065627648.

The previous prime is 221050051099. The next prime is 221050051139. The reversal of 221050051105 is 501150050122.

It is a happy number.

221050051105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 25728480801 + 195321570304 = 160401^2 + 441952^2 .

It is a cyclic number.

It is not a de Polignac number, because 221050051105 - 2¹¹ = 221050049057 is a prime.

It is a super-2 number, since 2×221050051105² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1722300 + ... + 1846189.

It is an arithmetic number, because the mean of its divisors is an integer number (17872782165).

Almost surely, 2^221050051105 is an apocalyptic number.

It is an amenable number.

221050051105 is a deficient number, since it is larger than the sum of its proper divisors (64914463535).

221050051105 is a wasteful number, since it uses less digits than its factorization.

221050051105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569460.

The product of its (nonzero) digits is 500, while the sum is 22.

The spelling of 221050051105 in words is "two hundred twenty-one billion, fifty million, fifty-one thousand, one hundred five".