221220050 has 24 divisors (see below), whose sum is σ = 412353072. Its totient is φ = 88298000.

The previous prime is 221220037. The next prime is 221220067. The reversal of 221220050 is 50022122.

221220050 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20045 + ... + 29055.

It is an arithmetic number, because the mean of its divisors is an integer number (17181378).

Almost surely, 2^221220050 is an apocalyptic number.

221220050 is a deficient number, since it is larger than the sum of its proper divisors (191133022).

221220050 is a wasteful number, since it uses less digits than its factorization.

221220050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9514 (or 9509 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 221220050 is about 14873.4679883341. The cubic root of 221220050 is about 604.7949581787.

Adding to 221220050 its reverse (50022122), we get a palindrome (271242172).

The spelling of 221220050 in words is "two hundred twenty-one million, two hundred twenty thousand, fifty".