12205246243 has 2 divisors, whose sum is σ = 12205246244. Its totient is φ = 12205246242.

The previous prime is 12205246231. The next prime is 12205246303. The reversal of 12205246243 is 34264250221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12205246243 - 2¹⁷ = 12205115171 is a prime.

It is not a weakly prime, because it can be changed into another prime (12205246213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6102623121 + 6102623122.

It is an arithmetic number, because the mean of its divisors is an integer number (6102623122).

Almost surely, 2^12205246243 is an apocalyptic number.

12205246243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12205246243 is an equidigital number, since it uses as much as digits as its factorization.

12205246243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 12205246243 its reverse (34264250221), we get a palindrome (46469496464).

The spelling of 12205246243 in words is "twelve billion, two hundred five million, two hundred forty-six thousand, two hundred forty-three".