221584485122 has 32 divisors (see below), whose sum is σ = 446268057984. Its totient is φ = 79690723200.

The previous prime is 221584485121. The next prime is 221584485149.

221584485122 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (221584485121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55338779 + ... + 55342782.

It is an arithmetic number, because the mean of its divisors is an integer number (13945876812).

Almost surely, 2^221584485122 is an apocalyptic number.

221584485122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221584485122 is an abundant number, since it is smaller than the sum of its proper divisors (224683572862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221584485122 is a wasteful number, since it uses less digits than its factorization.

221584485122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110681594.

The product of its digits is 409600, while the sum is 44.

The spelling of 221584485122 in words is "two hundred twenty-one billion, five hundred eighty-four million, four hundred eighty-five thousand, one hundred twenty-two".