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13222121203 = 16078227829
BaseRepresentation
bin11000101000001100…
…11000111011110011
31021010110202100110201
430110012120323303
5204034330334303
610024003540031
7645441114214
oct142406307363
937113670421
1013222121203
1156755a73a5
12269008a617
131329402a75
148d606940b
15525bca81d
hex314198ef3

13222121203 has 4 divisors (see below), whose sum is σ = 13230350640. Its totient is φ = 13213891768.

The previous prime is 13222121179. The next prime is 13222121207. The reversal of 13222121203 is 30212122231.

13222121203 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 an emirpimes, since its reverse is a distinct semiprime: 30212122231 = 103012932931.

It is a cyclic number.

It is not a de Polignac number, because 13222121203 - 225 = 13188566771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13222121207) 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, 4112308 + ... + 4115521.

It is an arithmetic number, because the mean of its divisors is an integer number (3307587660).

Almost surely, 213222121203 is an apocalyptic number.

13222121203 is a deficient number, since it is larger than the sum of its proper divisors (8229437).

13222121203 is an equidigital number, since it uses as much as digits as its factorization.

13222121203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8229436.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13222121203 its reverse (30212122231), we get a palindrome (43434243434).

The spelling of 13222121203 in words is "thirteen billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred three".

Divisors: 1 1607 8227829 13222121203