221300510132 has 24 divisors (see below), whose sum is σ = 417082600200. Its totient is φ = 102134716416.

The previous prime is 221300510099. The next prime is 221300510141. The reversal of 221300510132 is 231015003122.

221300510132 is digitally balanced in base 2 and base 3, because in such bases 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 42611693476 + 178688816656 = 206426^2 + 422716^2 .

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1582844 + ... + 1716972.

It is an arithmetic number, because the mean of its divisors is an integer number (17378441675).

Almost surely, 2^221300510132 is an apocalyptic number.

It is an amenable number.

221300510132 is a deficient number, since it is larger than the sum of its proper divisors (195782090068).

221300510132 is a wasteful number, since it uses less digits than its factorization.

221300510132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165875 (or 165873 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 221300510132 its reverse (231015003122), we get a palindrome (452315513254).

The spelling of 221300510132 in words is "two hundred twenty-one billion, three hundred million, five hundred ten thousand, one hundred thirty-two".