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12231023222 = 211772371987
BaseRepresentation
bin10110110010000011…
…01001101001110110
31011120101211100122002
423121001221221312
5200022120220342
65341401135302
7612044660555
oct133101515166
934511740562
1012231023222
115207103860
12245418a532
1311cbc91762
14840597d9c
154b8ba6d32
hex2d9069a76

12231023222 has 16 divisors (see below), whose sum is σ = 20017271232. Its totient is φ = 5558758920.

The previous prime is 12231023171. The next prime is 12231023249. The reversal of 12231023222 is 22232013221.

It is a happy number.

12231023222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×122310232222 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12231023194 and 12231023203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133913 + ... + 205899.

It is an arithmetic number, because the mean of its divisors is an integer number (1251079452).

Almost surely, 212231023222 is an apocalyptic number.

12231023222 is a deficient number, since it is larger than the sum of its proper divisors (7786248010).

12231023222 is a wasteful number, since it uses less digits than its factorization.

12231023222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79723.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12231023222 its reverse (22232013221), we get a palindrome (34463036443).

The spelling of 12231023222 in words is "twelve billion, two hundred thirty-one million, twenty-three thousand, two hundred twenty-two".

Divisors: 1 2 11 22 7723 15446 71987 84953 143974 169906 791857 1583714 555955601 1111911202 6115511611 12231023222