221104013020 has 24 divisors (see below), whose sum is σ = 506529193968. Its totient is φ = 80401459200.

The previous prime is 221104012933. The next prime is 221104013029. The reversal of 221104013020 is 20310401122.

It is a super-3 number, since 3×221104013020³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221104012985 and 221104013003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221104013029) 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, 502508901 + ... + 502509340.

It is an arithmetic number, because the mean of its divisors is an integer number (21105383082).

Almost surely, 2^221104013020 is an apocalyptic number.

221104013020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221104013020 is an abundant number, since it is smaller than the sum of its proper divisors (285425180948).

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

221104013020 is a wasteful number, since it uses less digits than its factorization.

221104013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005018261 (or 1005018259 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 221104013020 its reverse (20310401122), we get a palindrome (241414414142).

The spelling of 221104013020 in words is "two hundred twenty-one billion, one hundred four million, thirteen thousand, twenty".