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110001010101220 = 2257785721500723
BaseRepresentation
bin11001000000101110011011…
…001000011100101111100100
3112102110222211112020020111101
4121000232123020130233210
5103404224032041214340
61025541433313445444
732112211401321220
oct3100563310345744
9472428745206441
10110001010101220
1132060191533197
1210406b23870884
13494c0876372a4
141d2411215b780
15cab5a323bc9a
hex640b9b21cbe4

110001010101220 has 24 divisors (see below), whose sum is σ = 264002424243264. Its totient is φ = 37714632034656.

The previous prime is 110001010101211. The next prime is 110001010101287. The reversal of 110001010101220 is 22101010100011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 110001010101197 and 110001010101206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392860750222 + ... + 392860750501.

It is an arithmetic number, because the mean of its divisors is an integer number (11000101010136).

Almost surely, 2110001010101220 is an apocalyptic number.

110001010101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110001010101220 is an abundant number, since it is smaller than the sum of its proper divisors (154001414142044).

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

110001010101220 is a wasteful number, since it uses less digits than its factorization.

110001010101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785721500739 (or 785721500737 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 110001010101220 its reverse (22101010100011), we get a palindrome (132102020201231).

The spelling of 110001010101220 in words is "one hundred ten trillion, one billion, ten million, one hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 785721500723 1571443001446 3142886002892 3928607503615 5500050505061 7857215007230 11000101010122 15714430014460 22000202020244 27500252525305 55000505050610 110001010101220