12219940547 has 2 divisors, whose sum is σ = 12219940548. Its totient is φ = 12219940546.

The previous prime is 12219940541. The next prime is 12219940613. The reversal of 12219940547 is 74504991221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12219940547 - 2¹⁴ = 12219924163 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12219940498 and 12219940507.

It is not a weakly prime, because it can be changed into another prime (12219940541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6109970273 + 6109970274.

It is an arithmetic number, because the mean of its divisors is an integer number (6109970274).

Almost surely, 2^12219940547 is an apocalyptic number.

12219940547 is a deficient number, since it is larger than the sum of its proper divisors (1).

12219940547 is an equidigital number, since it uses as much as digits as its factorization.

12219940547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 12219940547 in words is "twelve billion, two hundred nineteen million, nine hundred forty thousand, five hundred forty-seven".