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2002222222220 = 2251131293580971
BaseRepresentation
bin11101001000101101101…
…111101000101110001100
321002102002022100102202202
4131020231233220232030
5230301022342102340
64131450322541032
7264440635040033
oct35105557505614
97072068312682
102002222222220
11702157279280
12284064207778
13116a68a7676c
146cc9da7371a
1537138138c15
hex1d22dbe8b8c

2002222222220 has 48 divisors (see below), whose sum is σ = 4734873916416. Its totient is φ = 704594328000.

The previous prime is 2002222222193. The next prime is 2002222222223. The reversal of 2002222222220 is 222222222002.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2002222222192 and 2002222222201.

It is not an unprimeable number, because it can be changed into a prime (2002222222223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146783666 + ... + 146797305.

It is an arithmetic number, because the mean of its divisors is an integer number (98643206592).

Almost surely, 22002222222220 is an apocalyptic number.

2002222222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002222222220 is an abundant number, since it is smaller than the sum of its proper divisors (2732651694196).

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

2002222222220 is a wasteful number, since it uses less digits than its factorization.

2002222222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293581022 (or 293581020 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 2002222222220 its reverse (222222222002), we get a palindrome (2224444444222).

The spelling of 2002222222220 in words is "two trillion, two billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 31 44 55 62 110 124 155 220 310 341 620 682 1364 1705 3410 6820 293580971 587161942 1174323884 1467904855 2935809710 3229390681 5871619420 6458781362 9101010101 12917562724 16146953405 18202020202 32293906810 36404040404 45505050505 64587813620 91010101010 100111111111 182020202020 200222222222 400444444444 500555555555 1001111111110 2002222222220