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220212012101212 = 22173819316726037
BaseRepresentation
bin110010000100100000011010…
…110000011010111001011100
31001212201001200202021012211001
4302010200122300122321130
5212330423200044214322
62100204000214440044
764245535642430605
oct6204403260327134
91055631622235731
10220212012101212
1164191431a08a5a
1220846691363024
1395b4b993a2681
143c54465410dac
151a6d346c0a827
hexc8481ac1ae5c

220212012101212 has 12 divisors (see below), whose sum is σ = 385373239476120. Its totient is φ = 110105372250896.

The previous prime is 220212012101183. The next prime is 220212012101239. The reversal of 220212012101212 is 212101210212022.

It is a self number, because there is not a number n which added to its sum of digits gives 220212012101212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157667743 + ... + 159058294.

It is an arithmetic number, because the mean of its divisors is an integer number (32114436623010).

Almost surely, 2220212012101212 is an apocalyptic number.

It is an amenable number.

220212012101212 is a deficient number, since it is larger than the sum of its proper divisors (165161227374908).

220212012101212 is a wasteful number, since it uses less digits than its factorization.

220212012101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316899860 (or 316899858 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220212012101212 its reverse (212101210212022), we get a palindrome (432313222313234).

The spelling of 220212012101212 in words is "two hundred twenty trillion, two hundred twelve billion, twelve million, one hundred one thousand, two hundred twelve".

Divisors: 1 2 4 173819 347638 695276 316726037 633452074 1266904148 55053003025303 110106006050606 220212012101212