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12220300131 = 3132313623523
BaseRepresentation
bin10110110000110001…
…01111101101100011
31011112122122120022120
423120120233231203
5200011344101011
65340335235323
7611554560114
oct133030575543
934478576276
1012220300131
11520104a3a6
122450678b43
1311c99a8a30
1483cda620b
154b7c89a06
hex2d862fb63

12220300131 has 16 divisors (see below), whose sum is σ = 18310016256. Its totient is φ = 7193219616.

The previous prime is 12220300121. The next prime is 12220300133. The reversal of 12220300131 is 13100302221.

It is not a de Polignac number, because 12220300131 - 27 = 12220300003 is a prime.

It is a super-2 number, since 2×122203001312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12220300131.

It is not an unprimeable number, because it can be changed into a prime (12220300133) 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 15 ways as a sum of consecutive naturals, for example, 6810865 + ... + 6812658.

It is an arithmetic number, because the mean of its divisors is an integer number (1144376016).

Almost surely, 212220300131 is an apocalyptic number.

12220300131 is a deficient number, since it is larger than the sum of its proper divisors (6089716125).

12220300131 is a wasteful number, since it uses less digits than its factorization.

12220300131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13623562.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12220300131 its reverse (13100302221), we get a palindrome (25320602352).

The spelling of 12220300131 in words is "twelve billion, two hundred twenty million, three hundred thousand, one hundred thirty-one".

Divisors: 1 3 13 23 39 69 299 897 13623523 40870569 177105799 313341029 531317397 940023087 4073433377 12220300131