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222120002212212 = 223131939173428197
BaseRepresentation
bin110010100000010001010111…
…110101000101000101110100
31002010110110112212021102021110
4302200101113311011011310
5213103203231031242322
62104224304220315020
764533432501662466
oct6240212765050564
91063413485242243
10222120002212212
1164857622657365
1220ab44173a2a70
1396c2a985b7230
143cbc946092136
151aa2cb7193c0c
hexca0457d45174

222120002212212 has 48 divisors (see below), whose sum is σ = 558176489321472. Its totient is φ = 68341090581120.

The previous prime is 222120002212189. The next prime is 222120002212267. The reversal of 222120002212212 is 212212200021222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33689103 + ... + 39739094.

It is an arithmetic number, because the mean of its divisors is an integer number (11628676860864).

Almost surely, 2222120002212212 is an apocalyptic number.

It is an amenable number.

222120002212212 is an abundant number, since it is smaller than the sum of its proper divisors (336056487109260).

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

222120002212212 is a wasteful number, since it uses less digits than its factorization.

222120002212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73447608 (or 73447606 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 222120002212212 its reverse (212212200021222), we get a palindrome (434332202233434).

The spelling of 222120002212212 in words is "two hundred twenty-two trillion, one hundred twenty billion, two million, two hundred twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 19391 38782 58173 77564 116346 232692 252083 504166 756249 1008332 1512498 3024996 73428197 146856394 220284591 293712788 440569182 881138364 954566561 1909133122 2863699683 3818266244 5727399366 11454798732 1423846168027 2847692336054 4271538504081 5695384672108 8543077008162 17086154016324 18510000184351 37020000368702 55530000553053 74040000737404 111060001106106 222120002212212