221130232200 has 96 divisors (see below), whose sum is σ = 761670818400. Its totient is φ = 58968060480.

The previous prime is 221130232181. The next prime is 221130232201. The reversal of 221130232200 is 2232031122.

221130232200 is a `hidden beast` number, since 221 + 13 + 0 + 232 + 200 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (221130232201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20469622 + ... + 20480421.

It is an arithmetic number, because the mean of its divisors is an integer number (7934071025).

Almost surely, 2^221130232200 is an apocalyptic number.

221130232200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221130232200 is an abundant number, since it is smaller than the sum of its proper divisors (540540586200).

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

221130232200 is a wasteful number, since it uses less digits than its factorization.

221130232200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40950068 (or 40950053 counting only the distinct ones).

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

Adding to 221130232200 its reverse (2232031122), we get a palindrome (223362263322).

The spelling of 221130232200 in words is "two hundred twenty-one billion, one hundred thirty million, two hundred thirty-two thousand, two hundred".