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2201002002020 = 225110050100101
BaseRepresentation
bin100000000001110101111…
…100010100011001100100
321210102011121120111211102
4200001311330110121210
5242030123003031040
64403043143255232
7315005611221533
oct40016574243144
97712147514742
102201002002020
11779492282a28
122b669b14a518
1312c727341a43
1478759a8031a
153c3be3cb515
hex20075f14664

2201002002020 has 12 divisors (see below), whose sum is σ = 4622104204284. Its totient is φ = 880400800800.

The previous prime is 2201002001923. The next prime is 2201002002071. The reversal of 2201002002020 is 202002001022.

It can be written as a sum of positive squares in 2 ways, for example, as 1532228060224 + 668773941796 = 1237832^2 + 817786^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2201002001992 and 2201002002010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55025050031 + ... + 55025050070.

It is an arithmetic number, because the mean of its divisors is an integer number (385175350357).

Almost surely, 22201002002020 is an apocalyptic number.

2201002002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201002002020 is an abundant number, since it is smaller than the sum of its proper divisors (2421102202264).

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

2201002002020 is a wasteful number, since it uses less digits than its factorization.

2201002002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110050100110 (or 110050100108 counting only the distinct ones).

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

Adding to 2201002002020 its reverse (202002001022), we get a palindrome (2403004003042).

The spelling of 2201002002020 in words is "two trillion, two hundred one billion, two million, two thousand, twenty".

Divisors: 1 2 4 5 10 20 110050100101 220100200202 440200400404 550250500505 1100501001010 2201002002020