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12234202221 = 318232237009
BaseRepresentation
bin10110110010011011…
…10001110001101101
31011120121210212101210
423121031301301231
5200023423432341
65341553225033
7612114001023
oct133115616155
934517725353
1012234202221
11520898522a
122455262179
1311cc835717
14840b84713
154b90d3c16
hex2d9371c6d

12234202221 has 8 divisors (see below), whose sum is σ = 16321224960. Its totient is φ = 8151657152.

The previous prime is 12234202219. The next prime is 12234202237. The reversal of 12234202221 is 12220243221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12234202221 - 21 = 12234202219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12234202261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1113036 + ... + 1123973.

It is an arithmetic number, because the mean of its divisors is an integer number (2040153120).

Almost surely, 212234202221 is an apocalyptic number.

It is an amenable number.

12234202221 is a deficient number, since it is larger than the sum of its proper divisors (4087022739).

12234202221 is a wasteful number, since it uses less digits than its factorization.

12234202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238835.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12234202221 its reverse (12220243221), we get a palindrome (24454445442).

The spelling of 12234202221 in words is "twelve billion, two hundred thirty-four million, two hundred two thousand, two hundred twenty-one".

Divisors: 1 3 1823 5469 2237009 6711027 4078067407 12234202221