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12131222222332 = 2217887712009669
BaseRepresentation
bin1011000010001000010100…
…1100001111010111111100
31120221201210201211200021001
42300202011030033113330
53042224220342103312
641445001225420044
72361310665341203
oct260420514172774
946851721750231
1012131222222332
113957905758734
12143b14193a624
1369cc7a8696a5
142dd22352023a
1516086320e057
hexb088530f5fc

12131222222332 has 24 divisors (see below), whose sum is σ = 22478705580240. Its totient is φ = 5708743307520.

The previous prime is 12131222222323. The next prime is 12131222222341. The reversal of 12131222222332 is 23322222213121.

It is an interprime number because it is at equal distance from previous prime (12131222222323) and next prime (12131222222341).

It is a self number, because there is not a number n which added to its sum of digits gives 12131222222332.

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, 5031594 + ... + 7041262.

It is an arithmetic number, because the mean of its divisors is an integer number (936612732510).

Almost surely, 212131222222332 is an apocalyptic number.

It is an amenable number.

12131222222332 is a deficient number, since it is larger than the sum of its proper divisors (10347483357908).

12131222222332 is a wasteful number, since it uses less digits than its factorization.

12131222222332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098461 (or 2098459 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

Adding to 12131222222332 its reverse (23322222213121), we get a palindrome (35453444435453).

The spelling of 12131222222332 in words is "twelve trillion, one hundred thirty-one billion, two hundred twenty-two million, two hundred twenty-two thousand, three hundred thirty-two".

Divisors: 1 2 4 17 34 68 88771 177542 355084 1509107 2009669 3018214 4019338 6036428 8038676 34164373 68328746 136657492 178400326799 356800653598 713601307196 3032805555583 6065611111166 12131222222332