2221424023391 has 2 divisors, whose sum is σ = 2221424023392. Its totient is φ = 2221424023390.

The previous prime is 2221424023363. The next prime is 2221424023457. The reversal of 2221424023391 is 1933204241222.

2221424023391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221424023391 - 2²² = 2221419829087 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221424023591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110712011695 + 1110712011696.

It is an arithmetic number, because the mean of its divisors is an integer number (1110712011696).

Almost surely, 2^{2221424023391} is an apocalyptic number.

2221424023391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221424023391 is an equidigital number, since it uses as much as digits as its factorization.

2221424023391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 2221424023391 in words is "two trillion, two hundred twenty-one billion, four hundred twenty-four million, twenty-three thousand, three hundred ninety-one".