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12110220222 = 2323711996211
BaseRepresentation
bin10110100011101001…
…10100101110111110
31011020222111221001220
423101310310232332
5144300204021342
65321404014210
7606050113332
oct132164645676
934228457056
1012110220222
1151549a3771
12241b831366
1311acc461a9
1482c50d7c2
154ad2935ec
hex2d1d34bbe

12110220222 has 64 divisors (see below), whose sum is σ = 25762406400. Its totient is φ = 3787106400.

The previous prime is 12110220217. The next prime is 12110220223. The reversal of 12110220222 is 22202201121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110220223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1946697 + ... + 1952907.

It is an arithmetic number, because the mean of its divisors is an integer number (402537600).

Almost surely, 212110220222 is an apocalyptic number.

12110220222 is an abundant number, since it is smaller than the sum of its proper divisors (13652186178).

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

12110220222 is a wasteful number, since it uses less digits than its factorization.

12110220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6509.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12110220222 its reverse (22202201121), we get a palindrome (34312421343).

The spelling of 12110220222 in words is "twelve billion, one hundred ten million, two hundred twenty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 23 46 69 71 138 142 199 213 398 426 597 1194 1633 3266 4577 4899 6211 9154 9798 12422 13731 14129 18633 27462 28258 37266 42387 84774 142853 285706 324967 428559 440981 649934 857118 881962 974901 1235989 1322943 1949802 2471978 2645886 3707967 7415934 10142563 20285126 28427747 30427689 56855494 60855378 85283241 87755219 170566482 175510438 263265657 526531314 2018370037 4036740074 6055110111 12110220222