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112211102020 = 22517330032653
BaseRepresentation
bin110100010000001001…
…1011000100101000100
3101201122011222121010111
41220200103120211010
53314302020231040
6123314333202404
711051460426013
oct1504023304504
9351564877114
10112211102020
1143652272856
12198b7330404
13a7736178b4
145606b10a7a
152dbb2a8dea
hex1a204d8944

112211102020 has 24 divisors (see below), whose sum is σ = 249504686424. Its totient is φ = 42244179456.

The previous prime is 112211102009. The next prime is 112211102021. The reversal of 112211102020 is 20201112211.

It can be written as a sum of positive squares in 4 ways, for example, as 43931321604 + 68279780416 = 209598^2 + 261304^2 .

It is not an unprimeable number, because it can be changed into a prime (112211102021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165015987 + ... + 165016666.

It is an arithmetic number, because the mean of its divisors is an integer number (10396028601).

Almost surely, 2112211102020 is an apocalyptic number.

112211102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112211102020 is an abundant number, since it is smaller than the sum of its proper divisors (137293584404).

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

112211102020 is a wasteful number, since it uses less digits than its factorization.

112211102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330032679 (or 330032677 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 112211102020 its reverse (20201112211), we get a palindrome (132412214231).

The spelling of 112211102020 in words is "one hundred twelve billion, two hundred eleven million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 330032653 660065306 1320130612 1650163265 3300326530 5610555101 6600653060 11221110202 22442220404 28052775505 56105551010 112211102020