221000233230 has 96 divisors (see below), whose sum is σ = 660618975744. Its totient is φ = 50211834048.

The previous prime is 221000233217. The next prime is 221000233339. The reversal of 221000233230 is 32332000122.

It is a happy number.

It is a super-2 number, since 2×221000233230² (a number of 23 digits) contains 22 as substring.

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

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, 945072 + ... + 1155491.

It is an arithmetic number, because the mean of its divisors is an integer number (6881447664).

Almost surely, 2^221000233230 is an apocalyptic number.

221000233230 is an abundant number, since it is smaller than the sum of its proper divisors (439618742514).

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

221000233230 is a wasteful number, since it uses less digits than its factorization.

221000233230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100750 (or 2100747 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 221000233230 its reverse (32332000122), we get a palindrome (253332233352).

The spelling of 221000233230 in words is "two hundred twenty-one billion, two hundred thirty-three thousand, two hundred thirty".