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2201002012220 = 2251114551687551
BaseRepresentation
bin100000000001110101111…
…100010110111000111100
321210102011121121000211012
4200001311330112320330
5242030123003342340
64403043143414352
7315005611263344
oct40016574267074
97712147530735
102201002012220
1177949228a660
122b669b1543b8
1312c72734658b
1478759a83d24
153c3be3ce565
hex20075f16e3c

2201002012220 has 48 divisors (see below), whose sum is σ = 5042649378816. Its totient is φ = 800308200000.

The previous prime is 2201002012213. The next prime is 2201002012283. The reversal of 2201002012220 is 222102001022.

It is a junction number, because it is equal to n+sod(n) for n = 2201002012195 and 2201002012204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2857445 + ... + 3544995.

It is an arithmetic number, because the mean of its divisors is an integer number (105055195392).

Almost surely, 22201002012220 is an apocalyptic number.

2201002012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201002012220 is an abundant number, since it is smaller than the sum of its proper divisors (2841647366596).

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

2201002012220 is a wasteful number, since it uses less digits than its factorization.

2201002012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702122 (or 702120 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2201002012220 its reverse (222102001022), we get a palindrome (2423104013242).

The spelling of 2201002012220 in words is "two trillion, two hundred one billion, two million, twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 14551 29102 58204 72755 145510 160061 291020 320122 640244 687551 800305 1375102 1600610 2750204 3201220 3437755 6875510 7563061 13751020 15126122 30252244 37815305 75630610 151261220 10004554601 20009109202 40018218404 50022773005 100045546010 110050100611 200091092020 220100201222 440200402444 550250503055 1100501006110 2201002012220