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20202101002220 = 2252507534028287
BaseRepresentation
bin1001001011111101010110…
…00011011100111111101100
32122112022011011011011101012
410211332223003130333230
510121442400324032340
6110544414520004352
74153360616135534
oct445765303347754
978468134134335
1020202101002220
116489732391305
1223233769006b8
13b37085981c97
144dbb033aa4c4
152507829be565
hex125fab0dcfec

20202101002220 has 24 divisors (see below), whose sum is σ = 42424591824384. Its totient is φ = 8080806168576.

The previous prime is 20202101002163. The next prime is 20202101002261. The reversal of 20202101002220 is 2220010120202.

It is a junction number, because it is equal to n+sod(n) for n = 20202101002195 and 20202101002204.

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, 3000917 + ... + 7029203.

It is an arithmetic number, because the mean of its divisors is an integer number (1767691326016).

Almost surely, 220202101002220 is an apocalyptic number.

20202101002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202101002220 is an abundant number, since it is smaller than the sum of its proper divisors (22222490822164).

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

20202101002220 is a wasteful number, since it uses less digits than its factorization.

20202101002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4279049 (or 4279047 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20202101002220 its reverse (2220010120202), we get a palindrome (22422111122422).

The spelling of 20202101002220 in words is "twenty trillion, two hundred two billion, one hundred one million, two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 250753 501506 1003012 1253765 2507530 4028287 5015060 8056574 16113148 20141435 40282870 80565740 1010105050111 2020210100222 4040420200444 5050525250555 10101050501110 20202101002220