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10101010110220 = 2254555711086123
BaseRepresentation
bin1001001011111101001100…
…0111101001011100001100
31022202122110202120111210201
42102333103013221130030
52310443332042011340
633252201234143244
72061526306202461
oct222772307513414
938678422514721
1010101010110220
1132448a5968957
121171787a21b24
135836a1004c03
1426cc6a3ad668
15127b3cba979a
hex92fd31e970c

10101010110220 has 24 divisors (see below), whose sum is σ = 21212588762064. Its totient is φ = 4040314990656.

The previous prime is 10101010110181. The next prime is 10101010110241. The reversal of 10101010110220 is 2201101010101.

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 = 10101010110197 and 10101010110206.

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, 4631922 + ... + 6454201.

It is an arithmetic number, because the mean of its divisors is an integer number (883857865086).

Almost surely, 210101010110220 is an apocalyptic number.

10101010110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101010110220 is an abundant number, since it is smaller than the sum of its proper divisors (11111578651844).

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

10101010110220 is a wasteful number, since it uses less digits than its factorization.

10101010110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11131689 (or 11131687 counting only the distinct ones).

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

Adding to 10101010110220 its reverse (2201101010101), we get a palindrome (12302111120321).

The spelling of 10101010110220 in words is "ten trillion, one hundred one billion, ten million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 45557 91114 182228 227785 455570 911140 11086123 22172246 44344492 55430615 110861230 221722460 505050505511 1010101011022 2020202022044 2525252527555 5050505055110 10101010110220