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12220012201 = 13039378367
BaseRepresentation
bin10110110000101111…
…01001011010101001
31011112122002221100111
423120113221122221
5200011310342301
65340325134321
7611552250505
oct133027513251
934478087314
1012220012201
115200973041
12245055a3a1
1311c9907967
1483cd2d305
154b7c2e551
hex2d85e96a9

12220012201 has 4 divisors (see below), whose sum is σ = 12229391872. Its totient is φ = 12210632532.

The previous prime is 12220012193. The next prime is 12220012219. The reversal of 12220012201 is 10221002221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10221002221 = 28333607837.

It is a cyclic number.

It is not a de Polignac number, because 12220012201 - 23 = 12220012193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220012601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4687881 + ... + 4690486.

It is an arithmetic number, because the mean of its divisors is an integer number (3057347968).

Almost surely, 212220012201 is an apocalyptic number.

It is an amenable number.

12220012201 is a deficient number, since it is larger than the sum of its proper divisors (9379671).

12220012201 is an equidigital number, since it uses as much as digits as its factorization.

12220012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9379670.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12220012201 its reverse (10221002221), we get a palindrome (22441014422).

The spelling of 12220012201 in words is "twelve billion, two hundred twenty million, twelve thousand, two hundred one".

Divisors: 1 1303 9378367 12220012201