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2100000222020 = 225105000011101
BaseRepresentation
bin11110100011110001110…
…001000110101101000100
321102202110121220110202202
4132203301301012231010
5233401300024101040
64244420552454032
7304501651236611
oct36436161065504
97382417813682
102100000222020
1173a672418778
1229abb19aa318
1312304c120b8c
14738d796b508
153995c25d015
hex1e8f1c46b44

2100000222020 has 12 divisors (see below), whose sum is σ = 4410000466284. Its totient is φ = 840000088800.

The previous prime is 2100000221983. The next prime is 2100000222037. The reversal of 2100000222020 is 202220000012.

It can be written as a sum of positive squares in 2 ways, for example, as 1319010904324 + 780989317696 = 1148482^2 + 883736^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2100000221992 and 2100000222010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52500005531 + ... + 52500005570.

It is an arithmetic number, because the mean of its divisors is an integer number (367500038857).

Almost surely, 22100000222020 is an apocalyptic number.

2100000222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100000222020 is an abundant number, since it is smaller than the sum of its proper divisors (2310000244264).

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

2100000222020 is a wasteful number, since it uses less digits than its factorization.

2100000222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105000011110 (or 105000011108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 2100000222020 its reverse (202220000012), we get a palindrome (2302220222032).

The spelling of 2100000222020 in words is "two trillion, one hundred billion, two hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 105000011101 210000022202 420000044404 525000055505 1050000111010 2100000222020