220012010978443 has 2 divisors, whose sum is σ = 220012010978444. Its totient is φ = 220012010978442.

The previous prime is 220012010978381. The next prime is 220012010978449. The reversal of 220012010978443 is 344879010210022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220012010978443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220012010978443.

It is not a weakly prime, because it can be changed into another prime (220012010978449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110006005489221 + 110006005489222.

It is an arithmetic number, because the mean of its divisors is an integer number (110006005489222).

Almost surely, 2^{220012010978443} is an apocalyptic number.

220012010978443 is a deficient number, since it is larger than the sum of its proper divisors (1).

220012010978443 is an equidigital number, since it uses as much as digits as its factorization.

220012010978443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 220012010978443 in words is "two hundred twenty trillion, twelve billion, ten million, nine hundred seventy-eight thousand, four hundred forty-three".