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2222201010020 = 225111110050501
BaseRepresentation
bin100000010101100101100…
…000000111011101100100
321212102220000020200211212
4200111211200013131210
5242402031424310040
64420510503450552
7316356132632555
oct40254540073544
97772800220755
102222201010020
117874805a0452
122ba816756a58
13131725254464
14797ab2b832c
153cc10538d65
hex20565807764

2222201010020 has 12 divisors (see below), whose sum is σ = 4666622121084. Its totient is φ = 888880404000.

The previous prime is 2222201009983. The next prime is 2222201010047. The reversal of 2222201010020 is 200101022222.

It can be written as a sum of positive squares in 2 ways, for example, as 435610560064 + 1786590449956 = 660008^2 + 1336634^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2222201009977 and 2222201010004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55555025231 + ... + 55555025270.

It is an arithmetic number, because the mean of its divisors is an integer number (388885176757).

Almost surely, 22222201010020 is an apocalyptic number.

2222201010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222201010020 is an abundant number, since it is smaller than the sum of its proper divisors (2444421111064).

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

2222201010020 is a wasteful number, since it uses less digits than its factorization.

2222201010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111110050510 (or 111110050508 counting only the distinct ones).

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

Adding to 2222201010020 its reverse (200101022222), we get a palindrome (2422302032242).

The spelling of 2222201010020 in words is "two trillion, two hundred twenty-two billion, two hundred one million, ten thousand, twenty".

Divisors: 1 2 4 5 10 20 111110050501 222220101002 444440202004 555550252505 1111100505010 2222201010020