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12223202120 = 235305580053
BaseRepresentation
bin10110110001000111…
…10100001101001000
31011112212010000002122
423120203310031020
5200013114431440
65340521350412
7611621334533
oct133043641510
934485100078
1012223202120
115202751738
122451638408
1311ca48389c
1483d51da1a
154b815e7b5
hex2d88f4348

12223202120 has 16 divisors (see below), whose sum is σ = 27502204860. Its totient is φ = 4889280832.

The previous prime is 12223202111. The next prime is 12223202129. The reversal of 12223202120 is 2120232221.

It is an interprime number because it is at equal distance from previous prime (12223202111) and next prime (12223202129).

It can be written as a sum of positive squares in 2 ways, for example, as 12193018084 + 30184036 = 110422^2 + 5494^2 .

It is not an unprimeable number, because it can be changed into a prime (12223202129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152789987 + ... + 152790066.

Almost surely, 212223202120 is an apocalyptic number.

12223202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12223202120 is an abundant number, since it is smaller than the sum of its proper divisors (15279002740).

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

12223202120 is a wasteful number, since it uses less digits than its factorization.

12223202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305580064 (or 305580060 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12223202120 its reverse (2120232221), we get a palindrome (14343434341).

The spelling of 12223202120 in words is "twelve billion, two hundred twenty-three million, two hundred two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 305580053 611160106 1222320212 1527900265 2444640424 3055800530 6111601060 12223202120