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101220313222 = 273147551477
BaseRepresentation
bin101111001000100110…
…0110110100010000110
3100200021012212200021201
41132101030312202012
53124244400010342
6114255554333114
710212222316000
oct1362114664206
9320235780251
10101220313222
1139a22256526
121774a58a19a
139711596a82
144c8315b370
152976438db7
hex1791336886

101220313222 has 16 divisors (see below), whose sum is σ = 177061773600. Its totient is φ = 43380133944.

The previous prime is 101220313213. The next prime is 101220313223. The reversal of 101220313222 is 222313022101.

It is a self number, because there is not a number n which added to its sum of digits gives 101220313222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220313223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73775053 + ... + 73776424.

It is an arithmetic number, because the mean of its divisors is an integer number (11066360850).

Almost surely, 2101220313222 is an apocalyptic number.

101220313222 is a deficient number, since it is larger than the sum of its proper divisors (75841460378).

101220313222 is an equidigital number, since it uses as much as digits as its factorization.

101220313222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147551500 (or 147551486 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 101220313222 its reverse (222313022101), we get a palindrome (323533335323).

The spelling of 101220313222 in words is "one hundred one billion, two hundred twenty million, three hundred thirteen thousand, two hundred twenty-two".

Divisors: 1 2 7 14 49 98 343 686 147551477 295102954 1032860339 2065720678 7230022373 14460044746 50610156611 101220313222