221105050 has 12 divisors (see below), whose sum is σ = 411255486. Its totient is φ = 88442000.

The previous prime is 221105047. The next prime is 221105069. The reversal of 221105050 is 50501122.

It can be written as a sum of positive squares in 3 ways, for example, as 91987281 + 129117769 = 9591^2 + 11363^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2211001 + ... + 2211100.

Almost surely, 2^221105050 is an apocalyptic number.

221105050 is a deficient number, since it is larger than the sum of its proper divisors (190150436).

221105050 is a wasteful number, since it uses less digits than its factorization.

221105050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422113 (or 4422108 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 221105050 is about 14869.6015413998. The cubic root of 221105050 is about 604.6901402600.

Adding to 221105050 its reverse (50501122), we get a palindrome (271606172).

The spelling of 221105050 in words is "two hundred twenty-one million, one hundred five thousand, fifty".