12042220247 has 2 divisors, whose sum is σ = 12042220248. Its totient is φ = 12042220246.

The previous prime is 12042220243. The next prime is 12042220303. The reversal of 12042220247 is 74202224021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12042220247 - 2² = 12042220243 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12042220243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6021110123 + 6021110124.

It is an arithmetic number, because the mean of its divisors is an integer number (6021110124).

Almost surely, 2^12042220247 is an apocalyptic number.

12042220247 is a deficient number, since it is larger than the sum of its proper divisors (1).

12042220247 is an equidigital number, since it uses as much as digits as its factorization.

12042220247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 26.

Adding to 12042220247 its reverse (74202224021), we get a palindrome (86244444268).

The spelling of 12042220247 in words is "twelve billion, forty-two million, two hundred twenty thousand, two hundred forty-seven".