221548845122 has 32 divisors (see below), whose sum is σ = 366600406464. Its totient is φ = 99577192000.

The previous prime is 221548845103. The next prime is 221548845139.

221548845122 is nontrivially palindromic in base 10.

221548845122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1653113 + ... + 1782099.

It is an arithmetic number, because the mean of its divisors is an integer number (11456262702).

Almost surely, 2^221548845122 is an apocalyptic number.

221548845122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221548845122 is a deficient number, since it is larger than the sum of its proper divisors (145051561342).

221548845122 is a wasteful number, since it uses less digits than its factorization.

221548845122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129874.

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

The spelling of 221548845122 in words is "two hundred twenty-one billion, five hundred forty-eight million, eight hundred forty-five thousand, one hundred twenty-two".