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12012121022 = 2111633349727
BaseRepresentation
bin10110010111111101…
…00110101110111110
31011000010220222021012
423023332212232332
5144100100333042
65303541235222
7603446225666
oct131376465676
934003828235
1012012121022
115104590350
1223b2a02b12
131195819925
1481d4951a6
154a4866e82
hex2cbfa6bbe

12012121022 has 16 divisors (see below), whose sum is σ = 19776794112. Its totient is φ = 5426556120.

The previous prime is 12012121007. The next prime is 12012121039. The reversal of 12012121022 is 22012121021.

It is a junction number, because it is equal to n+sod(n) for n = 12012120988 and 12012121006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1671278 + ... + 1678449.

It is an arithmetic number, because the mean of its divisors is an integer number (1236049632).

Almost surely, 212012121022 is an apocalyptic number.

12012121022 is a deficient number, since it is larger than the sum of its proper divisors (7764673090).

12012121022 is a wasteful number, since it uses less digits than its factorization.

12012121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349903.

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

Adding to 12012121022 its reverse (22012121021), we get a palindrome (34024242043).

Subtracting 12012121022 from its reverse (22012121021), we obtain a palindrome (9999999999).

The spelling of 12012121022 in words is "twelve billion, twelve million, one hundred twenty-one thousand, twenty-two".

Divisors: 1 2 11 22 163 326 1793 3586 3349727 6699454 36846997 73693994 546005501 1092011002 6006060511 12012121022