221300122 has 16 divisors (see below), whose sum is σ = 338845032. Its totient is φ = 108359680.

The previous prime is 221300063. The next prime is 221300137. The reversal of 221300122 is 221003122.

221300122 is digitally balanced in base 3, 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 4 ways, for example, as 216060601 + 5239521 = 14699^2 + 2289^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66318 + ... + 69574.

Almost surely, 2^221300122 is an apocalyptic number.

221300122 is a deficient number, since it is larger than the sum of its proper divisors (117544910).

221300122 is a wasteful number, since it uses less digits than its factorization.

221300122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3953.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 221300122 is about 14876.1595178326. The cubic root of 221300122 is about 604.8679191667.

Adding to 221300122 its reverse (221003122), we get a palindrome (442303244).

The spelling of 221300122 in words is "two hundred twenty-one million, three hundred thousand, one hundred twenty-two".