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12223013320 = 235760771917
BaseRepresentation
bin10110110001000110…
…00110000111001000
31011112211202102010001
423120203012013020
5200013042411240
65340513332344
7611616620230
oct133043060710
934484672101
1012223013320
115202632901
1224515670b4
1311ca41897b
1483d4b0cc0
154b812389a
hex2d88c61c8

12223013320 has 64 divisors (see below), whose sum is σ = 31482823680. Its totient is φ = 4183785216.

The previous prime is 12223013279. The next prime is 12223013321. The reversal of 12223013320 is 2331032221.

It is not an unprimeable number, because it can be changed into a prime (12223013321) 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, 134002 + ... + 205918.

It is an arithmetic number, because the mean of its divisors is an integer number (491919120).

Almost surely, 212223013320 is an apocalyptic number.

12223013320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12223013320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15741411840).

12223013320 is an abundant number, since it is smaller than the sum of its proper divisors (19259810360).

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

12223013320 is a wasteful number, since it uses less digits than its factorization.

12223013320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72542 (or 72538 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12223013320 its reverse (2331032221), we get a palindrome (14554045541).

The spelling of 12223013320 in words is "twelve billion, two hundred twenty-three million, thirteen thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 607 1214 2428 3035 4249 4856 6070 8498 12140 16996 21245 24280 33992 42490 71917 84980 143834 169960 287668 359585 503419 575336 719170 1006838 1438340 2013676 2517095 2876680 4027352 5034190 10068380 20136760 43653619 87307238 174614476 218268095 305575333 349228952 436536190 611150666 873072380 1222301332 1527876665 1746144760 2444602664 3055753330 6111506660 12223013320