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12010201212 = 2234739753639
BaseRepresentation
bin10110010111101110…
…10010000001111100
31011000000022102210010
423023313102001330
5144044102414322
65303432143220
7603424011612
oct131367220174
934000272703
1012010201212
115103499a29
1223b2237b10
1311952c6b49
1481d1156b2
154a45d820c
hex2cbdd207c

12010201212 has 48 divisors (see below), whose sum is σ = 28692679680. Its totient is φ = 3908279232.

The previous prime is 12010201193. The next prime is 12010201213. The reversal of 12010201212 is 21210201021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010201213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197089 + ... + 250727.

It is an arithmetic number, because the mean of its divisors is an integer number (597764160).

Almost surely, 212010201212 is an apocalyptic number.

12010201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12010201212 is an abundant number, since it is smaller than the sum of its proper divisors (16682478468).

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

12010201212 is a wasteful number, since it uses less digits than its factorization.

12010201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54090 (or 54088 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12010201212 its reverse (21210201021), we get a palindrome (33220402233).

The spelling of 12010201212 in words is "twelve billion, ten million, two hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 47 94 141 188 282 397 564 794 1191 1588 2382 4764 18659 37318 53639 55977 74636 107278 111954 160917 214556 223908 321834 643668 2521033 5042066 7563099 10084132 15126198 21294683 30252396 42589366 63884049 85178732 127768098 255536196 1000850101 2001700202 3002550303 4003400404 6005100606 12010201212