22256242347 has 4 divisors (see below), whose sum is σ = 29674989800. Its totient is φ = 14837494896.

The previous prime is 22256242321. The next prime is 22256242387. The reversal of 22256242347 is 74324265222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22256242347 - 2¹¹ = 22256240299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22256242387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3709373722 + ... + 3709373727.

It is an arithmetic number, because the mean of its divisors is an integer number (7418747450).

Almost surely, 2^22256242347 is an apocalyptic number.

22256242347 is a deficient number, since it is larger than the sum of its proper divisors (7418747453).

22256242347 is an equidigital number, since it uses as much as digits as its factorization.

22256242347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7418747452.

The product of its digits is 322560, while the sum is 39.

The spelling of 22256242347 in words is "twenty-two billion, two hundred fifty-six million, two hundred forty-two thousand, three hundred forty-seven".