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12110110212 = 2233727275023
BaseRepresentation
bin10110100011101000…
…11001111000000100
31011020222022100011110
423101310121320010
5144300142011322
65321401405020
7606046144524
oct132164317004
934228270143
1012110110212
115154929052
12241b799770
1311acc080b5
1482c4c1684
154ad270c0c
hex2d1d19e04

12110110212 has 24 divisors (see below), whose sum is σ = 29020625536. Its totient is φ = 3927603168.

The previous prime is 12110110211. The next prime is 12110110279. The reversal of 12110110212 is 21201101121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (12110110211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13637068 + ... + 13637955.

Almost surely, 212110110212 is an apocalyptic number.

12110110212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12110110212 is an abundant number, since it is smaller than the sum of its proper divisors (16910515324).

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

12110110212 is a wasteful number, since it uses less digits than its factorization.

12110110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27275067 (or 27275065 counting only the distinct ones).

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

Adding to 12110110212 its reverse (21201101121), we get a palindrome (33311211333).

Subtracting 12110110212 from its reverse (21201101121), we obtain a palindrome (9090990909).

The spelling of 12110110212 in words is "twelve billion, one hundred ten million, one hundred ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 27275023 54550046 81825069 109100092 163650138 327300276 1009175851 2018351702 3027527553 4036703404 6055055106 12110110212