221322121332130 has 96 divisors (see below), whose sum is σ = 502878913669440. Its totient is φ = 69510109818240.

The previous prime is 221322121332107. The next prime is 221322121332157. The reversal of 221322121332130 is 31233121223122.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 131777920 + ... + 133446859.

It is an arithmetic number, because the mean of its divisors is an integer number (5238322017390).

Almost surely, 2^{221322121332130} is an apocalyptic number.

221322121332130 is an abundant number, since it is smaller than the sum of its proper divisors (281556792337310).

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

221322121332130 is a wasteful number, since it uses less digits than its factorization.

221322121332130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265224944 (or 265224937 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 221322121332130 its reverse (31233121223122), we get a palindrome (252555242555252).

The spelling of 221322121332130 in words is "two hundred twenty-one trillion, three hundred twenty-two billion, one hundred twenty-one million, three hundred thirty-two thousand, one hundred thirty".