221300830122 has 16 divisors (see below), whose sum is σ = 442610347872. Its totient is φ = 73765495440.

The previous prime is 221300830111. The next prime is 221300830123. The reversal of 221300830122 is 221038003122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221300830092 and 221300830101.

It is not an unprimeable number, because it can be changed into a prime (221300830123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3529 + ... + 665292.

It is an arithmetic number, because the mean of its divisors is an integer number (27663146742).

Almost surely, 2^221300830122 is an apocalyptic number.

221300830122 is an abundant number, since it is smaller than the sum of its proper divisors (221309517750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221300830122 is a wasteful number, since it uses less digits than its factorization.

221300830122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723973.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 221300830122 its reverse (221038003122), we get a palindrome (442338833244).

The spelling of 221300830122 in words is "two hundred twenty-one billion, three hundred million, eight hundred thirty thousand, one hundred twenty-two".