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2220203012221 = 41431509246839
BaseRepresentation
bin100000010011101110011…
…010010111000001111101
321212020201202122220010101
4200103232122113001331
5242333433432342341
64415540331441101
7316255462140235
oct40235632270175
97766652586111
102220203012221
117866457a10a7
122ba3595b6191
1313149732b53c
147965bbc0cc5
153cb44e1e831
hex204ee69707d

2220203012221 has 16 divisors (see below), whose sum is σ = 2284119129600. Its totient is φ = 2156771708800.

The previous prime is 2220203012201. The next prime is 2220203012249. The reversal of 2220203012221 is 1222103020222.

2220203012221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2220203012221 - 233 = 2211613077629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220203012201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8871120 + ... + 9117958.

It is an arithmetic number, because the mean of its divisors is an integer number (142757445600).

Almost surely, 22220203012221 is an apocalyptic number.

It is an amenable number.

2220203012221 is a deficient number, since it is larger than the sum of its proper divisors (63916117379).

2220203012221 is a wasteful number, since it uses less digits than its factorization.

2220203012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247820.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2220203012221 its reverse (1222103020222), we get a palindrome (3442306032443).

The spelling of 2220203012221 in words is "two trillion, two hundred twenty billion, two hundred three million, twelve thousand, two hundred twenty-one".

Divisors: 1 41 431 509 17671 20869 219379 246839 8994539 10120399 106387609 125641051 4361891969 5151283091 54151292981 2220203012221