Search a number
-
+
11230112212 = 221117113132863
BaseRepresentation
bin10100111010101110…
…11110100111010100
31001222122102210211221
422131113132213110
5140444402042322
65054204140124
7545202243634
oct123527364724
931878383757
1011230112212
114843118580
122214b37644
13109c7c5a17
147876906c4
1545ad959c7
hex29d5de9d4

11230112212 has 48 divisors (see below), whose sum is σ = 22901501952. Its totient is φ = 4761774080.

The previous prime is 11230112191. The next prime is 11230112213. The reversal of 11230112212 is 21221103211.

It is a super-2 number, since 2×112301122122 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11230112213) 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, 18093 + ... + 150955.

It is an arithmetic number, because the mean of its divisors is an integer number (477114624).

Almost surely, 211230112212 is an apocalyptic number.

It is an amenable number.

11230112212 is an abundant number, since it is smaller than the sum of its proper divisors (11671389740).

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

11230112212 is a wasteful number, since it uses less digits than its factorization.

11230112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133008 (or 133006 counting only the distinct ones).

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

Adding to 11230112212 its reverse (21221103211), we get a palindrome (32451215423).

Subtracting 11230112212 from its reverse (21221103211), we obtain a palindrome (9990990999).

The spelling of 11230112212 in words is "eleven billion, two hundred thirty million, one hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 11 17 22 34 44 68 113 187 226 374 452 748 1243 1921 2486 3842 4972 7684 21131 42262 84524 132863 265726 531452 1461493 2258671 2922986 4517342 5845972 9034684 15013519 24845381 30027038 49690762 60054076 99381524 165148709 255229823 330297418 510459646 660594836 1020919292 2807528053 5615056106 11230112212