2221043012347 has 2 divisors, whose sum is σ = 2221043012348. Its totient is φ = 2221043012346.

The previous prime is 2221043012341. The next prime is 2221043012359. The reversal of 2221043012347 is 7432103401222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221043012347 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221043012341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110521506173 + 1110521506174.

It is an arithmetic number, because the mean of its divisors is an integer number (1110521506174).

Almost surely, 2^{2221043012347} is an apocalyptic number.

2221043012347 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221043012347 is an equidigital number, since it uses as much as digits as its factorization.

2221043012347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 2221043012347 its reverse (7432103401222), we get a palindrome (9653146413569).

The spelling of 2221043012347 in words is "two trillion, two hundred twenty-one billion, forty-three million, twelve thousand, three hundred forty-seven".