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12222121210201 = 719289194927883
BaseRepresentation
bin1011000111011010111100…
…1100010111000101011001
31121021102102122022200220101
42301312233030113011121
53100221401012211301
641554433122255401
72401006362106510
oct261665714270531
947242378280811
1012222121210201
11399241087a701
12145488b7b7561
136a87059bc746
143037a7993677
15162dd3467701
hexb1daf317159

12222121210201 has 48 divisors (see below), whose sum is σ = 14915820816000. Its totient is φ = 9807829422336.

The previous prime is 12222121210199. The next prime is 12222121210207. The reversal of 12222121210201 is 10201212122221.

It is not a de Polignac number, because 12222121210201 - 21 = 12222121210199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222121210207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 438322006 + ... + 438349888.

It is an arithmetic number, because the mean of its divisors is an integer number (310746267000).

Almost surely, 212222121210201 is an apocalyptic number.

It is an amenable number.

12222121210201 is a deficient number, since it is larger than the sum of its proper divisors (2693699605799).

12222121210201 is a wasteful number, since it uses less digits than its factorization.

12222121210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29966 (or 29947 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12222121210201 its reverse (10201212122221), we get a palindrome (22423333332422).

The spelling of 12222121210201 in words is "twelve trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred ten thousand, two hundred one".

Divisors: 1 7 19 89 133 361 623 1691 1949 2527 11837 13643 27883 32129 37031 173461 195181 224903 259217 529777 703589 1214227 2481587 3295759 3708439 4925123 10065763 17371109 23070313 47150153 54343967 62619421 70460341 330051071 380407769 438335947 895852907 1032535373 4836613063 6270970349 7227747611 19618172087 33856291441 91895648197 137327204609 643269537379 1746017315743 12222121210201