221048969164 has 6 divisors (see below), whose sum is σ = 386835696044. Its totient is φ = 110524484580.

The previous prime is 221048969161. The next prime is 221048969203. The reversal of 221048969164 is 461969840122.

It is not an unprimeable number, because it can be changed into a prime (221048969161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27631121142 + ... + 27631121149.

Almost surely, 2^221048969164 is an apocalyptic number.

It is an amenable number.

221048969164 is a deficient number, since it is larger than the sum of its proper divisors (165786726880).

221048969164 is a wasteful number, since it uses less digits than its factorization.

221048969164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55262242295 (or 55262242293 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 221048969164 in words is "two hundred twenty-one billion, forty-eight million, nine hundred sixty-nine thousand, one hundred sixty-four".