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12113212210 = 2511283389117
BaseRepresentation
bin10110100100000000…
…01111001100110010
31011021012010221022021
423102000033030302
5144301440242320
65321552102054
7606114414331
oct132200171462
934235127267
1012113212210
115156657690
12242083492a
1311b0752cb8
1482ca8bd18
154ad684daa
hex2d200f332

12113212210 has 32 divisors (see below), whose sum is σ = 23870054592. Its totient is φ = 4389228480.

The previous prime is 12113212201. The next prime is 12113212213. The reversal of 12113212210 is 1221231121.

It is not an unprimeable number, because it can be changed into a prime (12113212213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163429 + ... + 225688.

It is an arithmetic number, because the mean of its divisors is an integer number (745939206).

Almost surely, 212113212210 is an apocalyptic number.

12113212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12113212210 is a deficient number, since it is larger than the sum of its proper divisors (11756842382).

12113212210 is a wasteful number, since it uses less digits than its factorization.

12113212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389418.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12113212210 its reverse (1221231121), we get a palindrome (13334443331).

The spelling of 12113212210 in words is "twelve billion, one hundred thirteen million, two hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 10 11 22 55 110 283 566 1415 2830 3113 6226 15565 31130 389117 778234 1945585 3891170 4280287 8560574 21401435 42802870 110120111 220240222 550600555 1101201110 1211321221 2422642442 6056606105 12113212210