12220420343 has 2 divisors, whose sum is σ = 12220420344. Its totient is φ = 12220420342.

The previous prime is 12220420337. The next prime is 12220420351. The reversal of 12220420343 is 34302402221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12220420343 - 2⁶ = 12220420279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12220420313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110210171 + 6110210172.

It is an arithmetic number, because the mean of its divisors is an integer number (6110210172).

Almost surely, 2^12220420343 is an apocalyptic number.

12220420343 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220420343 is an equidigital number, since it uses as much as digits as its factorization.

12220420343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 12220420343 its reverse (34302402221), we get a palindrome (46522822564).

The spelling of 12220420343 in words is "twelve billion, two hundred twenty million, four hundred twenty thousand, three hundred forty-three".