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2222204020 = 2251011100101
BaseRepresentation
bin1000010001110100…
…0010010001110100
312201212110122211121
42010131002101310
514022341012040
61004301313324
7106032264631
oct20435022164
95655418747
102222204020
11a40415853
12520265844
1329550702a
141711bb188
15d0155c4a
hex84742474

2222204020 has 24 divisors (see below), whose sum is σ = 4712836968. Its totient is φ = 880080000.

The previous prime is 2222204003. The next prime is 2222204021. The reversal of 2222204020 is 204022222.

It can be written as a sum of positive squares in 4 ways, for example, as 744416656 + 1477787364 = 27284^2 + 38442^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2222203985 and 2222204003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222204021) 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, 548031 + ... + 552070.

It is an arithmetic number, because the mean of its divisors is an integer number (196368207).

Almost surely, 22222204020 is an apocalyptic number.

2222204020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222204020 is an abundant number, since it is smaller than the sum of its proper divisors (2490632948).

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

2222204020 is a wasteful number, since it uses less digits than its factorization.

2222204020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100211 (or 1100209 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2222204020 is about 47140.2590149863. The cubic root of 2222204020 is about 1304.9523174154.

Adding to 2222204020 its reverse (204022222), we get a palindrome (2426226242).

The spelling of 2222204020 in words is "two billion, two hundred twenty-two million, two hundred four thousand, twenty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 2020 1100101 2200202 4400404 5500505 11001010 22002020 111110201 222220402 444440804 555551005 1111102010 2222204020