12210137 has 2 divisors, whose sum is σ = 12210138. Its totient is φ = 12210136.

The previous prime is 12210119. The next prime is 12210173. The reversal of 12210137 is 73101221.

Together with next prime (12210173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6739216 + 5470921 = 2596^2 + 2339^2 .

It is a cyclic number.

It is not a de Polignac number, because 12210137 - 2¹⁸ = 11947993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12210197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105068 + 6105069.

It is an arithmetic number, because the mean of its divisors is an integer number (6105069).

Almost surely, 2^12210137 is an apocalyptic number.

It is an amenable number.

12210137 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210137 is an equidigital number, since it uses as much as digits as its factorization.

12210137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 12210137 is about 3494.3006453366. The cubic root of 12210137 is about 230.2714941445.

Adding to 12210137 its reverse (73101221), we get a palindrome (85311358).

The spelling of 12210137 in words is "twelve million, two hundred ten thousand, one hundred thirty-seven".