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12012101222 = 211976755903
BaseRepresentation
bin10110010111111101…
…00001111001100110
31011000010212222002212
423023332201321212
5144100044214342
65303541003422
7603446114162
oct131376417146
934003788085
1012012101222
115104577490
1223b29b3572
131195810904
1481d48bca2
154a4861182
hex2cbfa1e66

12012101222 has 16 divisors (see below), whose sum is σ = 19658529792. Its totient is φ = 5459389320.

The previous prime is 12012101209. The next prime is 12012101237. The reversal of 12012101222 is 22210121021.

It is a junction number, because it is equal to n+sod(n) for n = 12012101197 and 12012101206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186923 + ... + 242825.

It is an arithmetic number, because the mean of its divisors is an integer number (1228658112).

Almost surely, 212012101222 is an apocalyptic number.

12012101222 is a deficient number, since it is larger than the sum of its proper divisors (7646428570).

12012101222 is a wasteful number, since it uses less digits than its factorization.

12012101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65683.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12012101222 its reverse (22210121021), we get a palindrome (34222222243).

The spelling of 12012101222 in words is "twelve billion, twelve million, one hundred one thousand, two hundred twenty-two".

Divisors: 1 2 11 22 9767 19534 55903 107437 111806 214874 614933 1229866 546004601 1092009202 6006050611 12012101222