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20200112010220 = 2254021251182691
BaseRepresentation
bin1001001011111001101001…
…00000000011001111101100
32122112010000112111220021211
410211330310200003033230
510121424312133311340
6110543445305004204
74153260415032202
oct445746440031754
978463015456254
1020200112010220
11648890168316a
122322b00783664
13b36b2989023c
144db995179072
152506b80835ea
hex125f348033ec

20200112010220 has 24 divisors (see below), whose sum is σ = 42430785063408. Its totient is φ = 8078035310400.

The previous prime is 20200112010203. The next prime is 20200112010223. The reversal of 20200112010220 is 2201021100202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20200112010220.

It is not an unprimeable number, because it can be changed into a prime (20200112010223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125510926 + ... + 125671765.

It is an arithmetic number, because the mean of its divisors is an integer number (1767949377642).

Almost surely, 220200112010220 is an apocalyptic number.

20200112010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200112010220 is an abundant number, since it is smaller than the sum of its proper divisors (22230673053188).

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

20200112010220 is a wasteful number, since it uses less digits than its factorization.

20200112010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251186721 (or 251186719 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20200112010220 its reverse (2201021100202), we get a palindrome (22401133110422).

The spelling of 20200112010220 in words is "twenty trillion, two hundred billion, one hundred twelve million, ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 4021 8042 16084 20105 40210 80420 251182691 502365382 1004730764 1255913455 2511826910 5023653820 1010005600511 2020011201022 4040022402044 5050028002555 10100056005110 20200112010220