221332323020 has 24 divisors (see below), whose sum is σ = 466845455664. Its totient is φ = 88142914496.

The previous prime is 221332323007. The next prime is 221332323029. The reversal of 221332323020 is 20323233122.

It is not an unprimeable number, because it can be changed into a prime (221332323029) 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, 24371267 + ... + 24380346.

It is an arithmetic number, because the mean of its divisors is an integer number (19451893986).

Almost surely, 2^221332323020 is an apocalyptic number.

221332323020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221332323020 is an abundant number, since it is smaller than the sum of its proper divisors (245513132644).

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

221332323020 is a wasteful number, since it uses less digits than its factorization.

221332323020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48751849 (or 48751847 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 221332323020 its reverse (20323233122), we get a palindrome (241655556142).

The spelling of 221332323020 in words is "two hundred twenty-one billion, three hundred thirty-two million, three hundred twenty-three thousand, twenty".