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12222330000 = 24354537687
BaseRepresentation
bin10110110001000000…
…11111010010010000
31011112210110200202220
423120200133102100
5200012404030000
65340450541040
7611611043106
oct133040372220
934483420686
1012222330000
115202206481
122451297780
1311ca23993a
1483d373c76
154b803b1a0
hex2d881f490

12222330000 has 200 divisors, whose sum is σ = 40204980288. Its totient is φ = 3197376000.

The previous prime is 12222329989. The next prime is 12222330007. The reversal of 12222330000 is 3322221.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (12222330007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1586157 + ... + 1593843.

Almost surely, 212222330000 is an apocalyptic number.

12222330000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12222330000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20102490144).

12222330000 is an abundant number, since it is smaller than the sum of its proper divisors (27982650288).

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

12222330000 is an equidigital number, since it uses as much as digits as its factorization.

12222330000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7771 (or 7750 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 12222330000 its reverse (3322221), we get a palindrome (12225652221).

The spelling of 12222330000 in words is "twelve billion, two hundred twenty-two million, three hundred thirty thousand".