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221210102002202 = 21764310118475071
BaseRepresentation
bin110010010011000001111101…
…100011001111001000011010
31002000020110221100111120001022
4302103001331203033020122
5212443301242103032302
62102250303513122442
764410621354546065
oct6223017543171032
91060213840446038
10221210102002202
116453674a710225
1220987bbb6b9422
13965803ba0c9c1
143c8a8a9cc18dc
151a892b091b8a2
hexc9307d8cf21a

221210102002202 has 16 divisors (see below), whose sum is σ = 351880089103872. Its totient is φ = 103936975919040.

The previous prime is 221210102002187. The next prime is 221210102002223. The reversal of 221210102002202 is 202200201012122.

It is a happy number.

It is a super-2 number, since 2×2212101020022022 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5059215674 + ... + 5059259397.

It is an arithmetic number, because the mean of its divisors is an integer number (21992505568992).

Almost surely, 2221210102002202 is an apocalyptic number.

221210102002202 is a deficient number, since it is larger than the sum of its proper divisors (130669987101670).

221210102002202 is a wasteful number, since it uses less digits than its factorization.

221210102002202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10118475733.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221210102002202 its reverse (202200201012122), we get a palindrome (423410303014324).

The spelling of 221210102002202 in words is "two hundred twenty-one trillion, two hundred ten billion, one hundred two million, two thousand, two hundred two".

Divisors: 1 2 17 34 643 1286 10931 21862 10118475071 20236950142 172014076207 344028152414 6506179470653 13012358941306 110605051001101 221210102002202