221002132230 has 96 divisors (see below), whose sum is σ = 659834173440. Its totient is φ = 50756466240.

The previous prime is 221002132193. The next prime is 221002132279. The reversal of 221002132230 is 32231200122.

221002132230 is a `hidden beast` number, since 221 + 0 + 0 + 213 + 2 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

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, 5855782 + ... + 5893401.

It is an arithmetic number, because the mean of its divisors is an integer number (6873272640).

Almost surely, 2^221002132230 is an apocalyptic number.

221002132230 is an abundant number, since it is smaller than the sum of its proper divisors (438832041210).

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

221002132230 is a wasteful number, since it uses less digits than its factorization.

221002132230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11749226 (or 11749223 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 221002132230 its reverse (32231200122), we get a palindrome (253233332352).

The spelling of 221002132230 in words is "two hundred twenty-one billion, two million, one hundred thirty-two thousand, two hundred thirty".