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12222022201 = 27763440227
BaseRepresentation
bin10110110000111110…
…10100001000111001
31011112202220001112221
423120133110020321
5200012314202301
65340440204041
7611605321534
oct133037241071
934482801487
1012222022201
1152020161a4
122451169621
1311ca15c7cc
1483d2d3a1b
154b7ec9da1
hex2d87d4239

12222022201 has 4 divisors (see below), whose sum is σ = 12222490192. Its totient is φ = 12221554212.

The previous prime is 12222022193. The next prime is 12222022207. The reversal of 12222022201 is 10222022221.

12222022201 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, and also an emirpimes, since its reverse is a distinct semiprime: 10222022221 = 43237721447.

It is a cyclic number.

It is not a de Polignac number, because 12222022201 - 23 = 12222022193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222022207) 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, 192351 + ... + 247876.

It is an arithmetic number, because the mean of its divisors is an integer number (3055622548).

Almost surely, 212222022201 is an apocalyptic number.

It is an amenable number.

12222022201 is a deficient number, since it is larger than the sum of its proper divisors (467991).

12222022201 is an equidigital number, since it uses as much as digits as its factorization.

12222022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467990.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12222022201 its reverse (10222022221), we get a palindrome (22444044422).

The spelling of 12222022201 in words is "twelve billion, two hundred twenty-two million, twenty-two thousand, two hundred one".

Divisors: 1 27763 440227 12222022201