221232230032 has 40 divisors (see below), whose sum is σ = 467936880480. Its totient is φ = 100488622080.

The previous prime is 221232230029. The next prime is 221232230111. The reversal of 221232230032 is 230032232122.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 221232229985 and 221232230012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198078 + ... + 694045.

It is an arithmetic number, because the mean of its divisors is an integer number (11698422012).

Almost surely, 2^221232230032 is an apocalyptic number.

221232230032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221232230032 is an abundant number, since it is smaller than the sum of its proper divisors (246704650448).

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

221232230032 is a wasteful number, since it uses less digits than its factorization.

221232230032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893551 (or 893545 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 221232230032 its reverse (230032232122), we get a palindrome (451264462154).

The spelling of 221232230032 in words is "two hundred twenty-one billion, two hundred thirty-two million, two hundred thirty thousand, thirty-two".