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2201000220 = 2232512227779
BaseRepresentation
bin1000001100110000…
…1001100100011100
312200101120101200200
42003030021210130
514001424001340
61002223023500
7105354123156
oct20314114434
95611511620
102201000220
11a2a453051
1251513ab90
13290cc19c3
1416c45bad6
15cd368330
hex8330991c

2201000220 has 36 divisors (see below), whose sum is σ = 6676367880. Its totient is φ = 586933344.

The previous prime is 2201000189. The next prime is 2201000239. The reversal of 2201000220 is 220001022.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6113710 + ... + 6114069.

Almost surely, 22201000220 is an apocalyptic number.

2201000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201000220 is an abundant number, since it is smaller than the sum of its proper divisors (4475367660).

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

2201000220 is a wasteful number, since it uses less digits than its factorization.

2201000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12227794 (or 12227789 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 2201000220 is about 46914.8187676346. The cubic root of 2201000220 is about 1300.7885196515.

Adding to 2201000220 its reverse (220001022), we get a palindrome (2421001242).

The spelling of 2201000220 in words is "two billion, two hundred one million, two hundred twenty", and thus it is an aban number.

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 12227779 24455558 36683337 48911116 61138895 73366674 110050011 122277790 146733348 183416685 220100022 244555580 366833370 440200044 550250055 733666740 1100500110 2201000220