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12011211011210 = 251998364310173
BaseRepresentation
bin1010111011001001001111…
…1101110011010010001010
31120112021000221120110222212
42232302103331303102022
53033242430004324320
641313512452545122
72346532002023255
oct256622375632212
946467027513885
1012011211011210
113910a20536524
12141ba2a3221a2
13691863258428
142d74ba8da09c
1515c68c2919c5
hexaec93f7348a

12011211011210 has 32 divisors (see below), whose sum is σ = 22781236037760. Its totient is φ = 4546986401088.

The previous prime is 12011211011203. The next prime is 12011211011231. The reversal of 12011211011210 is 1211011211021.

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, 31968317 + ... + 32341856.

It is an arithmetic number, because the mean of its divisors is an integer number (711913626180).

Almost surely, 212011211011210 is an apocalyptic number.

12011211011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12011211011210 is a deficient number, since it is larger than the sum of its proper divisors (10770025026550).

12011211011210 is a wasteful number, since it uses less digits than its factorization.

12011211011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64311182.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12011211011210 its reverse (1211011211021), we get a palindrome (13222222222231).

The spelling of 12011211011210 in words is "twelve trillion, eleven billion, two hundred eleven million, eleven thousand, two hundred ten".

Divisors: 1 2 5 10 19 38 95 190 983 1966 4915 9830 18677 37354 93385 186770 64310173 128620346 321550865 643101730 1221893287 2443786574 6109466435 12218932870 63216900059 126433800118 316084500295 632169000590 1201121101121 2402242202242 6005605505605 12011211011210