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12212133230 = 2511111019393
BaseRepresentation
bin10110101111110011…
…00101110101101110
31011112002021122102202
423113321211311232
5200002301230410
65335444221502
7611425263653
oct132771456556
934462248382
1012212133230
1151a74814a0
12244999a892
1311c80a964b
1483bc7bc2a
154b71c4ca5
hex2d7e65d6e

12212133230 has 16 divisors (see below), whose sum is σ = 23980189104. Its totient is φ = 4440775680.

The previous prime is 12212133229. The next prime is 12212133239. The reversal of 12212133230 is 3233121221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212133239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55509587 + ... + 55509806.

It is an arithmetic number, because the mean of its divisors is an integer number (1498761819).

Almost surely, 212212133230 is an apocalyptic number.

12212133230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212133230 is a deficient number, since it is larger than the sum of its proper divisors (11768055874).

12212133230 is a wasteful number, since it uses less digits than its factorization.

12212133230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111019411.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12212133230 its reverse (3233121221), we get a palindrome (15445254451).

The spelling of 12212133230 in words is "twelve billion, two hundred twelve million, one hundred thirty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 111019393 222038786 555096965 1110193930 1221213323 2442426646 6106066615 12212133230