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101212122201 = 394393574253
BaseRepresentation
bin101111001000010110…
…1100110110001011001
3100200020122110112022120
41132100231212301121
53124240300402301
6114255103011453
710212062562321
oct1362055466131
9320218415276
10101212122201
1139a18671493
1217747899b89
13970c989708
144c82028281
15297586be36
hex1790b66c59

101212122201 has 8 divisors (see below), whose sum is σ = 134963831040. Its totient is φ = 67467580752.

The previous prime is 101212122149. The next prime is 101212122251. The reversal of 101212122201 is 102221212101.

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

It is not a de Polignac number, because 101212122201 - 210 = 101212121177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101212122251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1758810 + ... + 1815443.

It is an arithmetic number, because the mean of its divisors is an integer number (16870478880).

Almost surely, 2101212122201 is an apocalyptic number.

It is an amenable number.

101212122201 is a deficient number, since it is larger than the sum of its proper divisors (33751708839).

101212122201 is an equidigital number, since it uses as much as digits as its factorization.

101212122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583695.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 101212122201 its reverse (102221212101), we get a palindrome (203433334302).

The spelling of 101212122201 in words is "one hundred one billion, two hundred twelve million, one hundred twenty-two thousand, two hundred one".

Divisors: 1 3 9439 28317 3574253 10722759 33737374067 101212122201