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121020022121201 = 797178232727719
BaseRepresentation
bin11011100001000100101011…
…011011011110001011110001
3120212111101211102100121020222
4123201010223123132023301
5111330243001130334301
61105215455230542425
734330256652152330
oct3341045333361361
9525441742317228
10121020022121201
1135619337558105
12116a65a8667a15
13526b1a6846bb8
1421c55866b9d17
15ded01da5731b
hex6e112b6de2f1

121020022121201 has 8 divisors (see below), whose sum is σ = 139734458532480. Its totient is φ = 102662051165568.

The previous prime is 121020022121183. The next prime is 121020022121239. The reversal of 121020022121201 is 102121220020121.

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

It is a cyclic number.

It is not a de Polignac number, because 121020022121201 - 210 = 121020022120177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121020022121201.

It is not an unprimeable number, because it can be changed into a prime (121020022021201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89116363181 + ... + 89116364538.

It is an arithmetic number, because the mean of its divisors is an integer number (17466807316560).

Almost surely, 2121020022121201 is an apocalyptic number.

It is an amenable number.

121020022121201 is a deficient number, since it is larger than the sum of its proper divisors (18714436411279).

121020022121201 is an equidigital number, since it uses as much as digits as its factorization.

121020022121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178232727823.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121020022121201 its reverse (102121220020121), we get a palindrome (223141242141322).

The spelling of 121020022121201 in words is "one hundred twenty-one trillion, twenty billion, twenty-two million, one hundred twenty-one thousand, two hundred one".

Divisors: 1 7 97 679 178232727719 1247629094033 17288574588743 121020022121201