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12212012011012 = 2211377501235879
BaseRepresentation
bin1011000110110101010010…
…1000110100111000000100
31121020110100010002011122121
42301231110220310320010
53100040200033323022
641550042035135324
72400201020246542
oct261552450647004
947213303064577
1012212012011012
1139890a3460730
12145292a144544
136a77844ba588
143030c9126d92
151629e0bd92c7
hexb1b54a34e04

12212012011012 has 24 divisors (see below), whose sum is σ = 23943944928960. Its totient is φ = 5400889832160.

The previous prime is 12212012011007. The next prime is 12212012011033. The reversal of 12212012011012 is 21011021021221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3750616312 + ... + 3750619567.

It is an arithmetic number, because the mean of its divisors is an integer number (997664372040).

Almost surely, 212212012011012 is an apocalyptic number.

It is an amenable number.

12212012011012 is a deficient number, since it is larger than the sum of its proper divisors (11731932917948).

12212012011012 is a wasteful number, since it uses less digits than its factorization.

12212012011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7501235931 (or 7501235929 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12212012011012 its reverse (21011021021221), we get a palindrome (33223033032233).

The spelling of 12212012011012 in words is "twelve trillion, two hundred twelve billion, twelve million, eleven thousand, twelve".

Divisors: 1 2 4 11 22 37 44 74 148 407 814 1628 7501235879 15002471758 30004943516 82513594669 165027189338 277545727523 330054378676 555091455046 1110182910092 3053003002753 6106006005506 12212012011012