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12222321103 = 15777849179
BaseRepresentation
bin10110110001000000…
…11101000111001111
31011112210110020120101
423120200131013033
5200012403233403
65340450431531
7611611005136
oct133040350717
934483406511
1012222321103
1152021aa823
1224512925a7
1311ca235885
1483d37091d
154b803871d
hex2d881d1cf

12222321103 has 4 divisors (see below), whose sum is σ = 12300170440. Its totient is φ = 12144471768.

The previous prime is 12222321079. The next prime is 12222321109. The reversal of 12222321103 is 30112322221.

12222321103 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12222321103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222321109) 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, 38924433 + ... + 38924746.

It is an arithmetic number, because the mean of its divisors is an integer number (3075042610).

Almost surely, 212222321103 is an apocalyptic number.

12222321103 is a deficient number, since it is larger than the sum of its proper divisors (77849337).

12222321103 is an equidigital number, since it uses as much as digits as its factorization.

12222321103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77849336.

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

Adding to 12222321103 its reverse (30112322221), we get a palindrome (42334643324).

The spelling of 12222321103 in words is "twelve billion, two hundred twenty-two million, three hundred twenty-one thousand, one hundred three".

Divisors: 1 157 77849179 12222321103