221163061424 has 20 divisors (see below), whose sum is σ = 442326123840. Its totient is φ = 107014384320.

The previous prime is 221163061411. The next prime is 221163061439. The reversal of 221163061424 is 424160361122.

221163061424 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 222946139 + ... + 222947130.

It is an arithmetic number, because the mean of its divisors is an integer number (22116306192).

Almost surely, 2^221163061424 is an apocalyptic number.

It is an amenable number.

221163061424 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221163061424 is a wasteful number, since it uses less digits than its factorization.

221163061424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445893308 (or 445893302 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 221163061424 in words is "two hundred twenty-one billion, one hundred sixty-three million, sixty-one thousand, four hundred twenty-four".