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12111200202112 = 271111037798463
BaseRepresentation
bin1011000000111101101111…
…0010010010110110000000
31120212211010100212122221121
42300033123302102312000
53041412214222431422
641431450352202024
72360001555102334
oct260173362226600
946784110778847
1012111200202112
11394a370859590
121437294539314
1369b109751c4b
142dc2843457c4
151600905938c7
hexb03dbc92d80

12111200202112 has 64 divisors (see below), whose sum is σ = 26345083023360. Its totient is φ = 5500099279360.

The previous prime is 12111200202109. The next prime is 12111200202137. The reversal of 12111200202112 is 21120200211121.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 2346208 + ... + 5452255.

It is an arithmetic number, because the mean of its divisors is an integer number (411641922240).

Almost surely, 212111200202112 is an apocalyptic number.

It is an amenable number.

12111200202112 is an abundant number, since it is smaller than the sum of its proper divisors (14233882821248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111200202112 is a wasteful number, since it uses less digits than its factorization.

12111200202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7799591 (or 7799579 counting only the distinct ones).

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

Adding to 12111200202112 its reverse (21120200211121), we get a palindrome (33231400413233).

Subtracting 12111200202112 from its reverse (21120200211121), we obtain a palindrome (9009000009009).

The spelling of 12111200202112 in words is "twelve trillion, one hundred eleven billion, two hundred million, two hundred two thousand, one hundred twelve".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 128 176 352 704 1103 1408 2206 4412 8824 12133 17648 24266 35296 48532 70592 97064 141184 194128 388256 776512 1553024 7798463 15596926 31193852 62387704 85783093 124775408 171566186 249550816 343132372 499101632 686264744 998203264 1372529488 2745058976 5490117952 8601704689 10980235904 17203409378 34406818756 68813637512 94618751579 137627275024 189237503158 275254550048 378475006316 550509100096 756950012632 1101018200192 1513900025264 3027800050528 6055600101056 12111200202112