221300214630 has 32 divisors (see below), whose sum is σ = 579404199168. Its totient is φ = 53648536800.

The previous prime is 221300214593. The next prime is 221300214637. The reversal of 221300214630 is 36412003122.

It is a self number, because there is not a number n which added to its sum of digits gives 221300214630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221300214637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335303026 + ... + 335303685.

It is an arithmetic number, because the mean of its divisors is an integer number (18106381224).

Almost surely, 2^221300214630 is an apocalyptic number.

221300214630 is an abundant number, since it is smaller than the sum of its proper divisors (358103984538).

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

221300214630 is a wasteful number, since it uses less digits than its factorization.

221300214630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670606732.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 221300214630 its reverse (36412003122), we get a palindrome (257712217752).

The spelling of 221300214630 in words is "two hundred twenty-one billion, three hundred million, two hundred fourteen thousand, six hundred thirty".