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12213131133224 = 237873832495813
BaseRepresentation
bin1011000110111001011101…
…0101111100000100101000
31121020120020002220110201102
42301232113111330010220
53100044443032230344
641550345053540532
72400240526524530
oct261562725740450
947216202813642
1012213131133224
11398961814681a
121452ba0aa4748
136a7902304c78
14303193a024c0
15162a5909ae4e
hexb1b9757c128

12213131133224 has 32 divisors (see below), whose sum is σ = 26171305269120. Its totient is φ = 5234137060416.

The previous prime is 12213131133199. The next prime is 12213131133239. The reversal of 12213131133224 is 42233113131221.

12213131133224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3645542 + ... + 6141354.

It is an arithmetic number, because the mean of its divisors is an integer number (817853289660).

Almost surely, 212213131133224 is an apocalyptic number.

12213131133224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12213131133224 is an abundant number, since it is smaller than the sum of its proper divisors (13958174135896).

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

12213131133224 is a wasteful number, since it uses less digits than its factorization.

12213131133224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583209 (or 2583205 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

Adding to 12213131133224 its reverse (42233113131221), we get a palindrome (54446244264445).

The spelling of 12213131133224 in words is "twelve trillion, two hundred thirteen billion, one hundred thirty-one million, one hundred thirty-three thousand, two hundred twenty-four".

Divisors: 1 2 4 7 8 14 28 56 87383 174766 349532 611681 699064 1223362 2446724 2495813 4893448 4991626 9983252 17470691 19966504 34941382 69882764 139765528 218091627379 436183254758 872366509516 1526641391653 1744733019032 3053282783306 6106565566612 12213131133224