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12222000031 is a prime number
BaseRepresentation
bin10110110000111110…
…01110101110011111
31011112202211221010211
423120133032232133
5200012313000111
65340435513251
7611605200103
oct133037165637
934482757124
1012222000031
11520200057a
122451158827
1311ca1526a7
1483d2c9903
154b7ec3521
hex2d87ceb9f

12222000031 has 2 divisors, whose sum is σ = 12222000032. Its totient is φ = 12222000030.

The previous prime is 12222000017. The next prime is 12222000101. The reversal of 12222000031 is 13000022221.

It is a weak prime.

It is an emirp because it is prime and its reverse (13000022221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12222000031 - 231 = 10074516383 is a prime.

It is a super-2 number, since 2×122220000312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12221999975 and 12222000020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12222004031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111000015 + 6111000016.

It is an arithmetic number, because the mean of its divisors is an integer number (6111000016).

Almost surely, 212222000031 is an apocalyptic number.

12222000031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222000031 is an equidigital number, since it uses as much as digits as its factorization.

12222000031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 12222000031 its reverse (13000022221), we get a palindrome (25222022252).

The spelling of 12222000031 in words is "twelve billion, two hundred twenty-two million, thirty-one", and thus it is an aban number.