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22020200220 = 2235894123633
BaseRepresentation
bin10100100000100000…
…011001011100011100
32002211121220001222010
4110200200121130130
5330044132401340
614041013151220
71406452420314
oct244040313434
962747801863
1022020200220
11937a913387
12432662b510
1320cc0a5595
1410cc71c444
1588d2bdb80
hex52081971c

22020200220 has 48 divisors (see below), whose sum is σ = 62349346080. Its totient is φ = 5806073856.

The previous prime is 22020200177. The next prime is 22020200243. The reversal of 22020200220 is 2200202022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22020200196 and 22020200205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2056477 + ... + 2067156.

It is an arithmetic number, because the mean of its divisors is an integer number (1298944710).

Almost surely, 222020200220 is an apocalyptic number.

22020200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020200220 is an abundant number, since it is smaller than the sum of its proper divisors (40329145860).

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

22020200220 is a wasteful number, since it uses less digits than its factorization.

22020200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4123734 (or 4123732 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 22020200220 its reverse (2200202022), we get a palindrome (24220402242).

It can be divided in two parts, 220202002 and 20, that added together give a palindrome (220202022).

The spelling of 22020200220 in words is "twenty-two billion, twenty million, two hundred thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 89 178 267 356 445 534 890 1068 1335 1780 2670 5340 4123633 8247266 12370899 16494532 20618165 24741798 41236330 49483596 61854495 82472660 123708990 247417980 367003337 734006674 1101010011 1468013348 1835016685 2202020022 3670033370 4404040044 5505050055 7340066740 11010100110 22020200220