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200102101212 = 2231317433174257
BaseRepresentation
bin1011101001011100000…
…0111100000011011100
3201010111110101222000210
42322113000330003130
511234302114214322
6231531534252420
720312500540116
oct2722700740334
9633443358023
10200102101212
1177954468372
1232945957110
1315b3c51a1b0
14998389c3b6
1553123e170c
hex2e9703c0dc

200102101212 has 96 divisors (see below), whose sum is σ = 533630970432. Its totient is φ = 57813958656.

The previous prime is 200102101201. The next prime is 200102101219. The reversal of 200102101212 is 212101201002.

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 (200102101219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1061188 + ... + 1235444.

It is an arithmetic number, because the mean of its divisors is an integer number (5558655942).

Almost surely, 2200102101212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200102101212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266815485216).

200102101212 is an abundant number, since it is smaller than the sum of its proper divisors (333528869220).

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

200102101212 is a wasteful number, since it uses less digits than its factorization.

200102101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174727 (or 174725 counting only the distinct ones).

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

Adding to 200102101212 its reverse (212101201002), we get a palindrome (412203302214).

The spelling of 200102101212 in words is "two hundred billion, one hundred two million, one hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 17 26 34 39 51 52 68 78 102 156 204 221 433 442 663 866 884 1299 1326 1732 2598 2652 5196 5629 7361 11258 14722 16887 22083 22516 29444 33774 44166 67548 88332 95693 174257 191386 287079 348514 382772 522771 574158 697028 1045542 1148316 2091084 2265341 2962369 4530682 5924738 6796023 8887107 9061364 11849476 13592046 17774214 27184092 35548428 38510797 75453281 77021594 115532391 150906562 154043188 226359843 231064782 301813124 452719686 462129564 905439372 980892653 1282705777 1961785306 2565411554 2942677959 3848117331 3923570612 5130823108 5885355918 7696234662 11770711836 15392469324 16675175101 33350350202 50025525303 66700700404 100051050606 200102101212