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2212323111 = 3434497919
BaseRepresentation
bin1000001111011101…
…0101111100100111
312201011212122210000
42003313111330213
514012323314421
61003305432343
7105552302415
oct20367257447
95634778700
102212323111
11a35887109
12518a9b6b3
1329345773b
1416db682b5
15ce353226
hex83dd5f27

2212323111 has 20 divisors (see below), whose sum is σ = 3306204000. Its totient is φ = 1474268256.

The previous prime is 2212323079. The next prime is 2212323143. The reversal of 2212323111 is 1113232122.

It is an interprime number because it is at equal distance from previous prime (2212323079) and next prime (2212323143).

It is not a de Polignac number, because 2212323111 - 25 = 2212323079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212323811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 275410 + ... + 283328.

It is an arithmetic number, because the mean of its divisors is an integer number (165310200).

Almost surely, 22212323111 is an apocalyptic number.

2212323111 is a deficient number, since it is larger than the sum of its proper divisors (1093880889).

2212323111 is an equidigital number, since it uses as much as digits as its factorization.

2212323111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11380 (or 11371 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2212323111 is about 47035.3389591273. The cubic root of 2212323111 is about 1303.0153105333.

Adding to 2212323111 its reverse (1113232122), we get a palindrome (3325555233).

The spelling of 2212323111 in words is "two billion, two hundred twelve million, three hundred twenty-three thousand, one hundred eleven".

Divisors: 1 3 9 27 81 3449 7919 10347 23757 31041 71271 93123 213813 279369 641439 27312631 81937893 245813679 737441037 2212323111