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12111202112210 = 256718076421063
BaseRepresentation
bin1011000000111101101111…
…1001100101001011010010
31120212211010111110201002222
42300033123321211023102
53041412220220042320
641431450501141042
72360001610246205
oct260173371451322
946784114421088
1012111202112210
11394a371943683
1214372950ba782
1369b109c70496
142dc2846c193c
1516009081e825
hexb03dbe652d2

12111202112210 has 16 divisors (see below), whose sum is σ = 22125539382336. Its totient is φ = 4772175160368.

The previous prime is 12111202112167. The next prime is 12111202112221. The reversal of 12111202112210 is 1221120211121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9038209862 + ... + 9038211201.

It is an arithmetic number, because the mean of its divisors is an integer number (1382846211396).

Almost surely, 212111202112210 is an apocalyptic number.

12111202112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111202112210 is a deficient number, since it is larger than the sum of its proper divisors (10014337270126).

12111202112210 is a wasteful number, since it uses less digits than its factorization.

12111202112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18076421137.

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

Adding to 12111202112210 its reverse (1221120211121), we get a palindrome (13332322323331).

The spelling of 12111202112210 in words is "twelve trillion, one hundred eleven billion, two hundred two million, one hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 10 67 134 335 670 18076421063 36152842126 90382105315 180764210630 1211120211221 2422240422442 6055601056105 12111202112210