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220002222220 = 225111000010101
BaseRepresentation
bin1100110011100100100…
…1111000000010001100
3210000212022222212001121
43030321021320002030
512101031032102340
6245022335050324
721615601014454
oct3147111700214
9700768885047
10220002222220
1185336578870
123677a3709a4
13179912c4421
14a9107c4d64
155ac94cd94a
hex333927808c

220002222220 has 24 divisors (see below), whose sum is σ = 504005091408. Its totient is φ = 80000808000.

The previous prime is 220002222197. The next prime is 220002222239. The reversal of 220002222220 is 22222200022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220002222194 and 220002222203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500004831 + ... + 500005270.

It is an arithmetic number, because the mean of its divisors is an integer number (21000212142).

Almost surely, 2220002222220 is an apocalyptic number.

220002222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220002222220 is an abundant number, since it is smaller than the sum of its proper divisors (284002869188).

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

220002222220 is a wasteful number, since it uses less digits than its factorization.

220002222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000010121 (or 1000010119 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 220002222220 its reverse (22222200022), we get a palindrome (242224422242).

The spelling of 220002222220 in words is "two hundred twenty billion, two million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1000010101 2000020202 4000040404 5000050505 10000101010 11000111111 20000202020 22000222222 44000444444 55000555555 110001111110 220002222220