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1212012210010 = 257471133260113
BaseRepresentation
bin10001101000110001100…
…011101010011101011010
311021212102012210121022111
4101220301203222131122
5124324200111210020
62324442443542534
7153364535542330
oct21506143523532
94255365717274
101212012210010
11428014328288
12176a9052aa4a
138a3a5135c94
1442939a03b50
15217d956dd5a
hex11a318ea75a

1212012210010 has 64 divisors (see below), whose sum is σ = 2568865508352. Its totient is φ = 403106328576.

The previous prime is 1212012209981. The next prime is 1212012210037. The reversal of 1212012210010 is 100122102121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1258287 + ... + 2001826.

It is an arithmetic number, because the mean of its divisors is an integer number (40138523568).

Almost surely, 21212012210010 is an apocalyptic number.

1212012210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212012210010 is an abundant number, since it is smaller than the sum of its proper divisors (1356853298342).

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

1212012210010 is a wasteful number, since it uses less digits than its factorization.

1212012210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260287.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1212012210010 its reverse (100122102121), we get a palindrome (1312134312131).

The spelling of 1212012210010 in words is "one trillion, two hundred twelve billion, twelve million, two hundred ten thousand, ten".

Divisors: 1 2 5 7 10 14 35 47 70 94 113 226 235 329 470 565 658 791 1130 1582 1645 3290 3955 5311 7910 10622 26555 37177 53110 74354 185885 371770 3260113 6520226 16300565 22820791 32601130 45641582 114103955 153225311 228207910 306450622 368392769 736785538 766126555 1072577177 1532253110 1841963845 2145154354 2578749383 3683927690 5157498766 5362885885 10725771770 12893746915 17314460143 25787493830 34628920286 86572300715 121201221001 173144601430 242402442002 606006105005 1212012210010