221210224130 has 48 divisors (see below), whose sum is σ = 463254820920. Its totient is φ = 75832420608.

The previous prime is 221210224129. The next prime is 221210224177. The reversal of 221210224130 is 31422012122.

It can be written as a sum of positive squares in 4 ways, for example, as 221124717121 + 85507009 = 470239^2 + 9247^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3769856 + ... + 3828084.

Almost surely, 2^221210224130 is an apocalyptic number.

221210224130 is an abundant number, since it is smaller than the sum of its proper divisors (242044596790).

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

221210224130 is a wasteful number, since it uses less digits than its factorization.

221210224130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66003 (or 65996 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 221210224130 its reverse (31422012122), we get a palindrome (252632236252).

The spelling of 221210224130 in words is "two hundred twenty-one billion, two hundred ten million, two hundred twenty-four thousand, one hundred thirty".