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210110012012220 = 223521683161501339
BaseRepresentation
bin101111110001100000001100…
…101000010011011010111100
31000112221022122222212120102220
4233301200030220103122330
5210014420301033342340
62022511112413445340
762153642652442455
oct5761401450233274
91015838588776386
10210110012012220
1160a47179251431
121b694889aa0850
13903139b25ba08
1439c554378212c
15194569c19ded0
hexbf180ca136bc

210110012012220 has 48 divisors (see below), whose sum is σ = 588335169502080. Its totient is φ = 56026752168256.

The previous prime is 210110012012141. The next prime is 210110012012233. The reversal of 210110012012220 is 22210210011012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 210110012012220.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 79449690 + ... + 82051649.

It is an arithmetic number, because the mean of its divisors is an integer number (12256982697960).

Almost surely, 2210110012012220 is an apocalyptic number.

210110012012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210110012012220 is an abundant number, since it is smaller than the sum of its proper divisors (378225157489860).

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

210110012012220 is a wasteful number, since it uses less digits than its factorization.

210110012012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161523034 (or 161523032 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210110012012220 its reverse (22210210011012), we get a palindrome (232320222023232).

The spelling of 210110012012220 in words is "two hundred ten trillion, one hundred ten billion, twelve million, twelve thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 21683 43366 65049 86732 108415 130098 216830 260196 325245 433660 650490 1300980 161501339 323002678 484504017 646005356 807506695 969008034 1615013390 1938016068 2422520085 3230026780 4845040170 9690080340 3501833533537 7003667067074 10505500600611 14007334134148 17509167667685 21011001201222 35018335335370 42022002402444 52527503003055 70036670670740 105055006006110 210110012012220