221103130020 has 48 divisors (see below), whose sum is σ = 623607683328. Its totient is φ = 58530461440.

The previous prime is 221103129983. The next prime is 221103130021. The reversal of 221103130020 is 20031301122.

221103130020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (221103130021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13440876 + ... + 13457315.

It is an arithmetic number, because the mean of its divisors is an integer number (12991826736).

Almost surely, 2^221103130020 is an apocalyptic number.

221103130020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221103130020 is an abundant number, since it is smaller than the sum of its proper divisors (402504553308).

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

221103130020 is a wasteful number, since it uses less digits than its factorization.

221103130020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26898340 (or 26898338 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 221103130020 its reverse (20031301122), we get a palindrome (241134431142).

The spelling of 221103130020 in words is "two hundred twenty-one billion, one hundred three million, one hundred thirty thousand, twenty".