221213042104 has 16 divisors (see below), whose sum is σ = 428154275520. Its totient is φ = 107038568640.

The previous prime is 221213042101. The next prime is 221213042123. The reversal of 221213042104 is 401240312122.

221213042104 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221213042101) by changing a digit.

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, 445993789 + ... + 445994284.

It is an arithmetic number, because the mean of its divisors is an integer number (26759642220).

Almost surely, 2^221213042104 is an apocalyptic number.

It is an amenable number.

221213042104 is a deficient number, since it is larger than the sum of its proper divisors (206941233416).

221213042104 is a wasteful number, since it uses less digits than its factorization.

221213042104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891988110 (or 891988106 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 221213042104 its reverse (401240312122), we get a palindrome (622453354226).

The spelling of 221213042104 in words is "two hundred twenty-one billion, two hundred thirteen million, forty-two thousand, one hundred four".