221131003230 has 192 divisors, whose sum is σ = 587510516736. Its totient is φ = 57697920000.

The previous prime is 221131003213. The next prime is 221131003277. The reversal of 221131003230 is 32300131122.

221131003230 is a `hidden beast` number, since 22 + 11 + 310 + 0 + 323 + 0 = 666.

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 95 ways as a sum of consecutive naturals, for example, 350445015 + ... + 350445645.

It is an arithmetic number, because the mean of its divisors is an integer number (3059950608).

Almost surely, 2^221131003230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221131003230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293755258368).

221131003230 is an abundant number, since it is smaller than the sum of its proper divisors (366379513506).

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

221131003230 is a wasteful number, since it uses less digits than its factorization.

221131003230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143 (or 1140 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 221131003230 its reverse (32300131122), we get a palindrome (253431134352).

The spelling of 221131003230 in words is "two hundred twenty-one billion, one hundred thirty-one million, three thousand, two hundred thirty".