221310003020 has 12 divisors (see below), whose sum is σ = 464751006384. Its totient is φ = 88524001200.

The previous prime is 221310003001. The next prime is 221310003029. The reversal of 221310003020 is 20300013122.

It is a happy number.

221310003020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221310002986 and 221310003004.

It is not an unprimeable number, because it can be changed into a prime (221310003029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5532750056 + ... + 5532750095.

It is an arithmetic number, because the mean of its divisors is an integer number (38729250532).

Almost surely, 2^221310003020 is an apocalyptic number.

221310003020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221310003020 is an abundant number, since it is smaller than the sum of its proper divisors (243441003364).

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

221310003020 is a wasteful number, since it uses less digits than its factorization.

221310003020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11065500160 (or 11065500158 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 221310003020 its reverse (20300013122), we get a palindrome (241610016142).

The spelling of 221310003020 in words is "two hundred twenty-one billion, three hundred ten million, three thousand, twenty".