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12201121310 = 257181962993
BaseRepresentation
bin10110101110011111…
…00101011000011110
31011111022120011220212
423113033211120132
5144441441340220
65334412212422
7611232551150
oct132717453036
934438504825
1012201121310
1151a1240034
12244616a112
1311c5a22311
1483a612ad0
154b624c0c5
hex2d73e561e

12201121310 has 32 divisors (see below), whose sum is σ = 25238146752. Its totient is φ = 4160125440.

The previous prime is 12201121253. The next prime is 12201121333. The reversal of 12201121310 is 1312110221.

It is a super-3 number, since 3×122011213103 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468827 + ... + 494166.

It is an arithmetic number, because the mean of its divisors is an integer number (788692086).

Almost surely, 212201121310 is an apocalyptic number.

12201121310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12201121310 is an abundant number, since it is smaller than the sum of its proper divisors (13037025442).

12201121310 is a wasteful number, since it uses less digits than its factorization.

12201121310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963188.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12201121310 its reverse (1312110221), we get a palindrome (13513231531).

The spelling of 12201121310 in words is "twelve billion, two hundred one million, one hundred twenty-one thousand, three hundred ten".

Divisors: 1 2 5 7 10 14 35 70 181 362 905 1267 1810 2534 6335 12670 962993 1925986 4814965 6740951 9629930 13481902 33704755 67409510 174301733 348603466 871508665 1220112131 1743017330 2440224262 6100560655 12201121310