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12222342200 = 235261111711
BaseRepresentation
bin10110110001000001…
…00010010000111000
31011112210111022111202
423120200202100320
5200012404422300
65340451113332
7611611123505
oct133040422070
934483438452
1012222342200
115202214662
1224512a2848
1311ca242363
1483d3784ac
154b803ead5
hex2d8822438

12222342200 has 24 divisors (see below), whose sum is σ = 28416946080. Its totient is φ = 4888936800.

The previous prime is 12222342199. The next prime is 12222342203. The reversal of 12222342200 is 224322221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222342203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30555656 + ... + 30556055.

It is an arithmetic number, because the mean of its divisors is an integer number (1184039420).

Almost surely, 212222342200 is an apocalyptic number.

12222342200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222342200 is an abundant number, since it is smaller than the sum of its proper divisors (16194603880).

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

12222342200 is a wasteful number, since it uses less digits than its factorization.

12222342200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61111727 (or 61111718 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 12222342200 its reverse (224322221), we get a palindrome (12446664421).

The spelling of 12222342200 in words is "twelve billion, two hundred twenty-two million, three hundred forty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 61111711 122223422 244446844 305558555 488893688 611117110 1222234220 1527792775 2444468440 3055585550 6111171100 12222342200