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12102101210210 = 2511121021909091
BaseRepresentation
bin1011000000011011110101…
…1100011001010001100010
31120211221122020111222120112
42300012331130121101202
53041240100402211320
641423343433211322
72356230230665214
oct260067534312142
946757566458515
1012102101210210
1139465216a5270
121435575260b42
1369a2b9621c7b
142dba5db225b4
1515ec0b860ec5
hexb01bd719462

12102101210210 has 32 divisors (see below), whose sum is σ = 23764348517184. Its totient is φ = 4400722872000.

The previous prime is 12102101210183. The next prime is 12102101210233. The reversal of 12102101210210 is 1201210120121.

It is a Curzon number.

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, 12857765 + ... + 13766855.

It is an arithmetic number, because the mean of its divisors is an integer number (742635891162).

Almost surely, 212102101210210 is an apocalyptic number.

12102101210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102101210210 is a deficient number, since it is larger than the sum of its proper divisors (11662247306974).

12102101210210 is a wasteful number, since it uses less digits than its factorization.

12102101210210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030130.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12102101210210 its reverse (1201210120121), we get a palindrome (13303311330331).

The spelling of 12102101210210 in words is "twelve trillion, one hundred two billion, one hundred one million, two hundred ten thousand, two hundred ten".

Divisors: 1 2 5 10 11 22 55 110 121021 242042 605105 909091 1210210 1331231 1818182 2662462 4545455 6656155 9090910 10000001 13312310 20000002 50000005 100000010 110019101911 220038203822 550095509555 1100191019110 1210210121021 2420420242042 6051050605105 12102101210210