12213140237 has 2 divisors, whose sum is σ = 12213140238. Its totient is φ = 12213140236.

The previous prime is 12213140129. The next prime is 12213140267. The reversal of 12213140237 is 73204131221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7243031236 + 4970109001 = 85106^2 + 70499^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213140237 - 2¹⁶ = 12213074701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12213140267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106570118 + 6106570119.

It is an arithmetic number, because the mean of its divisors is an integer number (6106570119).

Almost surely, 2^12213140237 is an apocalyptic number.

It is an amenable number.

12213140237 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213140237 is an equidigital number, since it uses as much as digits as its factorization.

12213140237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 12213140237 its reverse (73204131221), we get a palindrome (85417271458).

The spelling of 12213140237 in words is "twelve billion, two hundred thirteen million, one hundred forty thousand, two hundred thirty-seven".