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131222311212010 = 2528049394678259
BaseRepresentation
bin11101110101100010010011…
…001111110001001111101010
3122012121201201111012101211211
4131311202103033301033222
5114144421243132241020
61143030410401143334
736432333125451034
oct3565422317611752
9565551644171754
10131222311212010
11388a20847a2107
121287391a62ab4a
13582b298317095
14245929d918c54
1510285d7d8885a
hex7758933f13ea

131222311212010 has 16 divisors (see below), whose sum is σ = 236200294879200. Its totient is φ = 52488894552016.

The previous prime is 131222311211989. The next prime is 131222311212011. The reversal of 131222311212010 is 10212113222131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131222311212011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25710261 + ... + 30388519.

It is an arithmetic number, because the mean of its divisors is an integer number (14762518429950).

Almost surely, 2131222311212010 is an apocalyptic number.

131222311212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131222311212010 is a deficient number, since it is larger than the sum of its proper divisors (104977983667190).

131222311212010 is a wasteful number, since it uses less digits than its factorization.

131222311212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7483205.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 131222311212010 its reverse (10212113222131), we get a palindrome (141434424434141).

The spelling of 131222311212010 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, three hundred eleven million, two hundred twelve thousand, ten".

Divisors: 1 2 5 10 2804939 4678259 5609878 9356518 14024695 23391295 28049390 46782590 13122231121201 26244462242402 65611155606005 131222311212010