221010330020 has 24 divisors (see below), whose sum is σ = 464694010368. Its totient is φ = 88295119200.

The previous prime is 221010329987. The next prime is 221010330041. The reversal of 221010330020 is 20033010122.

It is a happy number.

221010330020 is digitally balanced in base 3, 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 = 221010329977 and 221010330004.

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, 6796676 + ... + 6829115.

It is an arithmetic number, because the mean of its divisors is an integer number (19362250432).

Almost surely, 2^221010330020 is an apocalyptic number.

221010330020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221010330020 is an abundant number, since it is smaller than the sum of its proper divisors (243683680348).

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

221010330020 is a wasteful number, since it uses less digits than its factorization.

221010330020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13626611 (or 13626609 counting only the distinct ones).

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

Adding to 221010330020 its reverse (20033010122), we get a palindrome (241043340142).

The spelling of 221010330020 in words is "two hundred twenty-one billion, ten million, three hundred thirty thousand, twenty".