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12012112011122 = 2192370919384817
BaseRepresentation
bin1010111011001100100110…
…1010110101111101110010
31120112100100201222000111222
42232303021222311331302
53033301301133323442
641314142120305042
72346563222265206
oct256631152657562
946470321860458
1012012112011122
113911343091053
121420040012182
13691977b11c82
142d7564436b06
1515c6e14198d2
hexaecc9ab5f72

12012112011122 has 32 divisors (see below), whose sum is σ = 19819037923200. Its totient is φ = 5434882092288.

The previous prime is 12012112011101. The next prime is 12012112011139. The reversal of 12012112011122 is 22111021121021.

It is a self number, because there is not a number n which added to its sum of digits gives 12012112011122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9072743 + ... + 10312074.

It is an arithmetic number, because the mean of its divisors is an integer number (619344935100).

Almost surely, 212012112011122 is an apocalyptic number.

12012112011122 is a deficient number, since it is larger than the sum of its proper divisors (7806925912078).

12012112011122 is a wasteful number, since it uses less digits than its factorization.

12012112011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19385570.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12012112011122 its reverse (22111021121021), we get a palindrome (34123133132143).

The spelling of 12012112011122 in words is "twelve trillion, twelve billion, one hundred twelve million, eleven thousand, one hundred twenty-two".

Divisors: 1 2 19 23 38 46 437 709 874 1418 13471 16307 26942 32614 309833 619666 19384817 38769634 368311523 445850791 736623046 891701582 8471165029 13743835253 16942330058 27487670506 261132869807 316108210819 522265739614 632216421638 6006056005561 12012112011122