221422606565003 has 4 divisors (see below), whose sum is σ = 221488291114968. Its totient is φ = 221356922015040.

The previous prime is 221422606564771. The next prime is 221422606565051. The reversal of 221422606565003 is 300565606224122.

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

It is a cyclic number.

It is not a de Polignac number, because 221422606565003 - 2¹⁰ = 221422606563979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221422600565003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32842269926 + ... + 32842276667.

It is an arithmetic number, because the mean of its divisors is an integer number (55372072778742).

Almost surely, 2^{221422606565003} is an apocalyptic number.

221422606565003 is a deficient number, since it is larger than the sum of its proper divisors (65684549965).

221422606565003 is an equidigital number, since it uses as much as digits as its factorization.

221422606565003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65684549964.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 221422606565003 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, six hundred six million, five hundred sixty-five thousand, three".