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220211020220 = 22531165354217
BaseRepresentation
bin1100110100010110011…
…0011000000110111100
3210001101212212220001212
43031011212120012330
512101443010121340
6245055154223552
721624014534132
oct3150546300674
9701355786055
10220211020220
118543341a8a4
1236818284bb8
13179c563c139
14a930417752
155adc9c4a65
hex33459981bc

220211020220 has 48 divisors (see below), whose sum is σ = 464649127488. Its totient is φ = 87665103360.

The previous prime is 220211020219. The next prime is 220211020223. The reversal of 220211020220 is 22020112022.

It is a junction number, because it is equal to n+sod(n) for n = 220211020195 and 220211020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220211020223) 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, 4034552 + ... + 4088768.

It is an arithmetic number, because the mean of its divisors is an integer number (9680190156).

Almost surely, 2220211020220 is an apocalyptic number.

220211020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220211020220 is an abundant number, since it is smaller than the sum of its proper divisors (244438107268).

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

220211020220 is a wasteful number, since it uses less digits than its factorization.

220211020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55190 (or 55188 counting only the distinct ones).

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

Adding to 220211020220 its reverse (22020112022), we get a palindrome (242231132242).

The spelling of 220211020220 in words is "two hundred twenty billion, two hundred eleven million, twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 311 622 653 1244 1306 1555 2612 3110 3265 6220 6530 13060 54217 108434 203083 216868 271085 406166 542170 812332 1015415 1084340 2030830 4061660 16861487 33722974 35403701 67445948 70807402 84307435 141614804 168614870 177018505 337229740 354037010 708074020 11010551011 22021102022 44042204044 55052755055 110105510110 220211020220