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10112101212 = 223842675101
BaseRepresentation
bin10010110101011101…
…00110101101011100
3222002201200222002010
421122232212231130
5131202144214322
64351225231220
7505405304433
oct113256465534
928081628063
1010112101212
11431a021344
121b62632510
13c51caa055
146bcdc411a
153e2b5320c
hex25aba6b5c

10112101212 has 12 divisors (see below), whose sum is σ = 23594902856. Its totient is φ = 3370700400.

The previous prime is 10112101201. The next prime is 10112101213. The reversal of 10112101212 is 21210121101.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 842675101 = 10112101212 / (1 + 0 + 1 + 1 + 2 + 1 + 0 + 1 + 2 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112101213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421337539 + ... + 421337562.

Almost surely, 210112101212 is an apocalyptic number.

10112101212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10112101212 is an abundant number, since it is smaller than the sum of its proper divisors (13482801644).

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

10112101212 is a wasteful number, since it uses less digits than its factorization.

10112101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842675108 (or 842675106 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10112101212 its reverse (21210121101), we get a palindrome (31322222313).

The spelling of 10112101212 in words is "ten billion, one hundred twelve million, one hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 842675101 1685350202 2528025303 3370700404 5056050606 10112101212