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12114312220 = 2251948316599
BaseRepresentation
bin10110100100001000…
…11011110000011100
31011021021012211020101
423102010123300130
5144302230442340
65322031430444
7606126645343
oct132204336034
934237184211
1012114312220
11515723908a
122421085424
1311b0a498aa
1482cc96b5a
154ad800c9a
hex2d211bc1c

12114312220 has 48 divisors (see below), whose sum is σ = 26788608000. Its totient is φ = 4589040960.

The previous prime is 12114312209. The next prime is 12114312229. The reversal of 12114312220 is 2221341121.

It is a super-3 number, since 3×121143122203 (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12114312229) 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, 1832481 + ... + 1839079.

It is an arithmetic number, because the mean of its divisors is an integer number (558096000).

Almost surely, 212114312220 is an apocalyptic number.

12114312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12114312220 is an abundant number, since it is smaller than the sum of its proper divisors (14674295780).

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

12114312220 is a wasteful number, since it uses less digits than its factorization.

12114312220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11458 (or 11456 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12114312220 its reverse (2221341121), we get a palindrome (14335653341).

The spelling of 12114312220 in words is "twelve billion, one hundred fourteen million, three hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 4831 6599 9662 13198 19324 24155 26396 32995 48310 65990 91789 96620 125381 131980 183578 250762 367156 458945 501524 626905 917890 1253810 1835780 2507620 31879769 63759538 127519076 159398845 318797690 605715611 637595380 1211431222 2422862444 3028578055 6057156110 12114312220