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2220130331221 = 11517139031141
BaseRepresentation
bin100000010011101010000…
…101000110101001010101
321212020112200220022112111
4200103222011012221111
5242333311331044341
64415525213551021
7316253620306255
oct40235205065125
97766480808474
102220130331221
11786608769860
122ba3391a5471
1313148526162a
14796522a1965
153cb3d864681
hex204ea146a55

2220130331221 has 8 divisors (see below), whose sum is σ = 2422428797088. Its totient is φ = 2017909938000.

The previous prime is 2220130331189. The next prime is 2220130331231. The reversal of 2220130331221 is 1221330310222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2220130331221 - 25 = 2220130331189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220130331192 and 2220130331201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220130331231) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19458690 + ... + 19572451.

It is an arithmetic number, because the mean of its divisors is an integer number (302803599636).

Almost surely, 22220130331221 is an apocalyptic number.

It is an amenable number.

2220130331221 is a deficient number, since it is larger than the sum of its proper divisors (202298465867).

2220130331221 is a wasteful number, since it uses less digits than its factorization.

2220130331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39036323.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2220130331221 its reverse (1221330310222), we get a palindrome (3441460641443).

The spelling of 2220130331221 in words is "two trillion, two hundred twenty billion, one hundred thirty million, three hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 11 5171 56881 39031141 429342551 201830030111 2220130331221