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2112020110220 = 225105601005511
BaseRepresentation
bin11110101110111110001…
…101010101101110001100
321110220111022110001121012
4132232332031111232030
5234100404122011340
64254125412424352
7305405553505466
oct36567615255614
97426438401535
102112020110220
11744780323679
122a13a73180b8
13124216429c67
1474318085136
1539e1260b565
hex1ebbe355b8c

2112020110220 has 12 divisors (see below), whose sum is σ = 4435242231504. Its totient is φ = 844808044080.

The previous prime is 2112020110201. The next prime is 2112020110229. The reversal of 2112020110220 is 220110202112.

It is a junction number, because it is equal to n+sod(n) for n = 2112020110195 and 2112020110204.

It is not an unprimeable number, because it can be changed into a prime (2112020110229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52800502736 + ... + 52800502775.

It is an arithmetic number, because the mean of its divisors is an integer number (369603519292).

Almost surely, 22112020110220 is an apocalyptic number.

2112020110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112020110220 is an abundant number, since it is smaller than the sum of its proper divisors (2323222121284).

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

2112020110220 is a wasteful number, since it uses less digits than its factorization.

2112020110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105601005520 (or 105601005518 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2112020110220 its reverse (220110202112), we get a palindrome (2332130312332).

The spelling of 2112020110220 in words is "two trillion, one hundred twelve billion, twenty million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 105601005511 211202011022 422404022044 528005027555 1056010055110 2112020110220