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12110211100 = 2252139315547
BaseRepresentation
bin10110100011101001…
…10010100000011100
31011020222111110120001
423101310302200130
5144300203223400
65321403504044
7606050044621
oct132164624034
934228443501
1012110211100
115154997929
12241b828024
1311acc41cb0
1482c50a348
154ad290a6a
hex2d1d3281c

12110211100 has 36 divisors (see below), whose sum is σ = 28300634824. Its totient is φ = 4471462080.

The previous prime is 12110211083. The next prime is 12110211109. The reversal of 12110211100 is 111201121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110211109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4656474 + ... + 4659073.

Almost surely, 212110211100 is an apocalyptic number.

12110211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12110211100 is an abundant number, since it is smaller than the sum of its proper divisors (16190423724).

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

12110211100 is a wasteful number, since it uses less digits than its factorization.

12110211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9315574 (or 9315567 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12110211100 its reverse (111201121), we get a palindrome (12221412221).

It can be divided in two parts, 1211021 and 1100, that added together give a palindrome (1212121).

The spelling of 12110211100 in words is "twelve billion, one hundred ten million, two hundred eleven thousand, one hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 260 325 650 1300 9315547 18631094 37262188 46577735 93155470 121102111 186310940 232888675 242204222 465777350 484408444 605510555 931554700 1211021110 2422042220 3027552775 6055105550 12110211100