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2201210131211 = 72132265814531
BaseRepresentation
bin100000000010000010010…
…110010001001100001011
321210102201010012120101222
4200002002112101030023
5242031034243144321
64403115540232255
7315014016254300
oct40020226211413
97712633176358
102201210131211
11779589808523
122b673899b68b
1312c75b4b4200
147877957b0a7
153c3d27de3ab
hex2008259130b

2201210131211 has 18 divisors (see below), whose sum is σ = 2772711383292. Its totient is φ = 1741616800560.

The previous prime is 2201210131189. The next prime is 2201210131261. The reversal of 2201210131211 is 1121310121022.

It is a happy number.

It is not a de Polignac number, because 2201210131211 - 234 = 2184030262027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2201210131211.

It is not an unprimeable number, because it can be changed into a prime (2201210131261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 132898985 + ... + 132915546.

It is an arithmetic number, because the mean of its divisors is an integer number (154039521294).

Almost surely, 22201210131211 is an apocalyptic number.

2201210131211 is a deficient number, since it is larger than the sum of its proper divisors (571501252081).

2201210131211 is a wasteful number, since it uses less digits than its factorization.

2201210131211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265814571 (or 265814551 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2201210131211 its reverse (1121310121022), we get a palindrome (3322520252233).

The spelling of 2201210131211 in words is "two trillion, two hundred one billion, two hundred ten million, one hundred thirty-one thousand, two hundred eleven".

Divisors: 1 7 13 49 91 169 637 1183 8281 265814531 1860701717 3455588903 13024912019 24189122321 44922655739 169323856247 314458590173 2201210131211