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12111202201 = 71730171743
BaseRepresentation
bin10110100011110001…
…00100011110011001
31011021001100211002111
423101320210132121
5144300431432301
65321441032321
7606061343260
oct132170443631
934231324074
1012111202201
11515550451a
1224200256a1
1311b01cb147
1482c6c75d7
154ad3d9551
hex2d1e24799

12111202201 has 4 divisors (see below), whose sum is σ = 13841373952. Its totient is φ = 10381030452.

The previous prime is 12111202183. The next prime is 12111202211. The reversal of 12111202201 is 10220211121.

12111202201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 12111202201 - 27 = 12111202073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12111202211) 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 3 ways as a sum of consecutive naturals, for example, 865085865 + ... + 865085878.

It is an arithmetic number, because the mean of its divisors is an integer number (3460343488).

Almost surely, 212111202201 is an apocalyptic number.

It is an amenable number.

12111202201 is a deficient number, since it is larger than the sum of its proper divisors (1730171751).

12111202201 is an equidigital number, since it uses as much as digits as its factorization.

12111202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730171750.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12111202201 its reverse (10220211121), we get a palindrome (22331413322).

The spelling of 12111202201 in words is "twelve billion, one hundred eleven million, two hundred two thousand, two hundred one".

Divisors: 1 7 1730171743 12111202201