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212100010220201 = 2946620115688069
BaseRepresentation
bin110000001110011101100001…
…110001000001101010101001
31000210222120012101120202002112
4300032131201301001222221
5210300021310104021301
62031033222145412105
762450501656223165
oct6016354161015251
91023876171522075
10212100010220201
11616441223738a4
121b9564a033a035
139146c3962904c
143a539a3b63ca5
15197c31c0679bb
hexc0e761c41aa9

212100010220201 has 8 divisors (see below), whose sum is σ = 219414288304200. Its totient is φ = 204785764444800.

The previous prime is 212100010220183. The next prime is 212100010220207. The reversal of 212100010220201 is 102022010001212.

It can be written as a sum of positive squares in 4 ways, for example, as 2577309160000 + 209522701060201 = 1605400^2 + 14474899^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-212100010220201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212100010220207) 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, 5675795 + ... + 21363863.

It is an arithmetic number, because the mean of its divisors is an integer number (27426786038025).

Almost surely, 2212100010220201 is an apocalyptic number.

It is an amenable number.

212100010220201 is a deficient number, since it is larger than the sum of its proper divisors (7314278083999).

212100010220201 is a wasteful number, since it uses less digits than its factorization.

212100010220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16154299.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212100010220201 its reverse (102022010001212), we get a palindrome (314122020221413).

The spelling of 212100010220201 in words is "two hundred twelve trillion, one hundred billion, ten million, two hundred twenty thousand, two hundred one".

Divisors: 1 29 466201 13519829 15688069 454954001 7313793455869 212100010220201