220231203221 has 8 divisors (see below), whose sum is σ = 231868425600. Its totient is φ = 208598591520.

The previous prime is 220231203217. The next prime is 220231203239. The reversal of 220231203221 is 122302132022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220231203221 - 2² = 220231203217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220231203193 and 220231203202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220231203421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054400 + ... + 1245881.

It is an arithmetic number, because the mean of its divisors is an integer number (28983553200).

Almost surely, 2^220231203221 is an apocalyptic number.

It is an amenable number.

220231203221 is a deficient number, since it is larger than the sum of its proper divisors (11637222379).

220231203221 is a wasteful number, since it uses less digits than its factorization.

220231203221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305339.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 220231203221 its reverse (122302132022), we get a palindrome (342533335243).

The spelling of 220231203221 in words is "two hundred twenty billion, two hundred thirty-one million, two hundred three thousand, two hundred twenty-one".