221345635230 has 64 divisors (see below), whose sum is σ = 604651521600. Its totient is φ = 57585853440.

The previous prime is 221345635229. The next prime is 221345635237. The reversal of 221345635230 is 32536543122.

221345635230 is a `hidden beast` number, since 2 + 2 + 13 + 4 + 5 + 635 + 2 + 3 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221345635237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9986475 + ... + 10008614.

It is an arithmetic number, because the mean of its divisors is an integer number (9447680025).

Almost surely, 2^221345635230 is an apocalyptic number.

221345635230 is an abundant number, since it is smaller than the sum of its proper divisors (383305886370).

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

221345635230 is a wasteful number, since it uses less digits than its factorization.

221345635230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19995146 (or 19995140 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 221345635230 in words is "two hundred twenty-one billion, three hundred forty-five million, six hundred thirty-five thousand, two hundred thirty".