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12226213031 is a prime number
BaseRepresentation
bin10110110001011110…
…10011010010100111
31011120001202222021212
423120233103102213
5200014402304111
65341110102035
7611656044644
oct133057232247
934501688255
1012226213031
11520441889a
12245264a91b
1311cac991a6
1483daa4dcb
154b855698b
hex2d8bd34a7

12226213031 has 2 divisors, whose sum is σ = 12226213032. Its totient is φ = 12226213030.

The previous prime is 12226213019. The next prime is 12226213033. The reversal of 12226213031 is 13031262221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12226213031 - 210 = 12226212007 is a prime.

It is a super-2 number, since 2×122262130312 (a number of 21 digits) contains 22 as substring.

Together with 12226213033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12226212988 and 12226213006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12226213033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6113106515 + 6113106516.

It is an arithmetic number, because the mean of its divisors is an integer number (6113106516).

Almost surely, 212226213031 is an apocalyptic number.

12226213031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12226213031 is an equidigital number, since it uses as much as digits as its factorization.

12226213031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12226213031 its reverse (13031262221), we get a palindrome (25257475252).

The spelling of 12226213031 in words is "twelve billion, two hundred twenty-six million, two hundred thirteen thousand, thirty-one".