424122222221387 has 2 divisors, whose sum is σ = 424122222221388. Its totient is φ = 424122222221386.

The previous prime is 424122222221381. The next prime is 424122222221437. The reversal of 424122222221387 is 783122222221424.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 424122222221387 - 2¹⁰ = 424122222220363 is a prime.

It is not a weakly prime, because it can be changed into another prime (424122222221381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212061111110693 + 212061111110694.

It is an arithmetic number, because the mean of its divisors is an integer number (212061111110694).

Almost surely, 2^{424122222221387} is an apocalyptic number.

424122222221387 is a deficient number, since it is larger than the sum of its proper divisors (1).

424122222221387 is an equidigital number, since it uses as much as digits as its factorization.

424122222221387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 688128, while the sum is 44.

The spelling of 424122222221387 in words is "four hundred twenty-four trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-one thousand, three hundred eighty-seven".