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131222211012002 = 21161155657628183
BaseRepresentation
bin11101110101100010001101…
…010001100010010110100010
3122012121201110111122201021102
4131311202031101202112202
5114144421042004341002
61143030352421354402
736432330500663525
oct3565421521422642
9565551414581242
10131222211012002
11388a2033184390
12128738b0b68a02
13582b280633536
1424592904b4bbc
1510285ce194a02
hex77588d4625a2

131222211012002 has 32 divisors (see below), whose sum is σ = 218249122840704. Its totient is φ = 58668178435200.

The previous prime is 131222211012001. The next prime is 131222211012017. The reversal of 131222211012002 is 200210112222131.

It is not an unprimeable number, because it can be changed into a prime (131222211012001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208577603 + ... + 209205785.

It is an arithmetic number, because the mean of its divisors is an integer number (6820285088772).

Almost surely, 2131222211012002 is an apocalyptic number.

131222211012002 is a deficient number, since it is larger than the sum of its proper divisors (87026911828702).

131222211012002 is a wasteful number, since it uses less digits than its factorization.

131222211012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783914.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 131222211012002 its reverse (200210112222131), we get a palindrome (331432323234133).

The spelling of 131222211012002 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, two hundred eleven million, twelve thousand, two".

Divisors: 1 2 11 22 61 122 671 1342 155657 311314 628183 1256366 1712227 3424454 6910013 9495077 13820026 18990154 38319163 76638326 104445847 208891694 421510793 843021586 97781081231 195562162462 1075591893541 2151183787082 5964645955091 11929291910182 65611105506001 131222211012002