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2222012102020 = 225111100605101
BaseRepresentation
bin100000010101011010001…
…111011111010110000100
321212102101211210011210021
4200111122033133112010
5242401140044231040
64420440034504524
7316351350143434
oct40253217372604
97772354704707
102222012102020
117873939a4037
122ba783435144
131316c5081a89
14797901822c4
153cbedb7124a
hex2055a3df584

2222012102020 has 12 divisors (see below), whose sum is σ = 4666225414284. Its totient is φ = 888804840800.

The previous prime is 2222012101999. The next prime is 2222012102047. The reversal of 2222012102020 is 202012102222.

It can be written as a sum of positive squares in 2 ways, for example, as 1679989268736 + 542022833284 = 1296144^2 + 736222^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2222012101985 and 2222012102003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55550302531 + ... + 55550302570.

It is an arithmetic number, because the mean of its divisors is an integer number (388852117857).

Almost surely, 22222012102020 is an apocalyptic number.

2222012102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222012102020 is an abundant number, since it is smaller than the sum of its proper divisors (2444213312264).

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

2222012102020 is a wasteful number, since it uses less digits than its factorization.

2222012102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111100605110 (or 111100605108 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2222012102020 its reverse (202012102222), we get a palindrome (2424024204242).

The spelling of 2222012102020 in words is "two trillion, two hundred twenty-two billion, twelve million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 111100605101 222201210202 444402420404 555503025505 1111006051010 2222012102020