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12201002021201 = 72283879858803
BaseRepresentation
bin1011000110001100010001…
…1001000011000101010001
31121012101220210211201222012
42301203010121003011101
53044400123004134301
641541021332552305
72366331130006100
oct261430431030521
947171823751865
1012201002021201
11398446361a3a4
121450776a82695
136a671b4a5bc6
14302762bb6037
15162599324ebb
hexb18c4643151

12201002021201 has 12 divisors (see below), whose sum is σ = 14243154319152. Its totient is φ = 10421047650888.

The previous prime is 12201002021167. The next prime is 12201002021203. The reversal of 12201002021201 is 10212020010221.

It is not a de Polignac number, because 12201002021201 - 218 = 12201001759057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12201002021203) 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 11 ways as a sum of consecutive naturals, for example, 439915535 + ... + 439943268.

It is an arithmetic number, because the mean of its divisors is an integer number (1186929526596).

Almost surely, 212201002021201 is an apocalyptic number.

It is an amenable number.

12201002021201 is a deficient number, since it is larger than the sum of its proper divisors (2042152297951).

12201002021201 is an equidigital number, since it uses as much as digits as its factorization.

12201002021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879859100 (or 879859093 counting only the distinct ones).

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

Adding to 12201002021201 its reverse (10212020010221), we get a palindrome (22413022031422).

The spelling of 12201002021201 in words is "twelve trillion, two hundred one billion, two million, twenty-one thousand, two hundred one".

Divisors: 1 7 49 283 1981 13867 879858803 6159011621 43113081347 249000041249 1743000288743 12201002021201