221331043230 has 64 divisors (see below), whose sum is σ = 580276113408. Its totient is φ = 53582751360.

The previous prime is 221331043229. The next prime is 221331043259. The reversal of 221331043230 is 32340133122.

It is a self number, because there is not a number n which added to its sum of digits gives 221331043230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215614 + ... + 699393.

It is an arithmetic number, because the mean of its divisors is an integer number (9066814272).

Almost surely, 2^221331043230 is an apocalyptic number.

221331043230 is an abundant number, since it is smaller than the sum of its proper divisors (358945070178).

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

221331043230 is a wasteful number, since it uses less digits than its factorization.

221331043230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915761.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 221331043230 its reverse (32340133122), we get a palindrome (253671176352).

The spelling of 221331043230 in words is "two hundred twenty-one billion, three hundred thirty-one million, forty-three thousand, two hundred thirty".