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10010001010212 = 223371729131205019
BaseRepresentation
bin1001000110101010001010…
…0011011110111000100100
31022102221120011220012201000
42101222202203132320210
52303000440224311322
633142310405233300
72052125104464420
oct221524243367044
938387504805630
1010010001010212
11320a243679015
121158009102830
13577c2910a748
142686b5475b80
151255b2e503ac
hex91aa28dee24

10010001010212 has 384 divisors, whose sum is σ = 32734969344000. Its totient is φ = 2579093637120.

The previous prime is 10010001010171. The next prime is 10010001010271. The reversal of 10010001010212 is 21201010001001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10010001010194 and 10010001010203.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 48722239 + ... + 48927257.

It is an arithmetic number, because the mean of its divisors is an integer number (85247316000).

Almost surely, 210010001010212 is an apocalyptic number.

10010001010212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10010001010212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16367484672000).

10010001010212 is an abundant number, since it is smaller than the sum of its proper divisors (22724968333788).

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

10010001010212 is a wasteful number, since it uses less digits than its factorization.

10010001010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205216 (or 205208 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10010001010212 its reverse (21201010001001), we get a palindrome (31211011011213).

The spelling of 10010001010212 in words is "ten trillion, ten billion, one million, ten thousand, two hundred twelve".