221334068 has 6 divisors (see below), whose sum is σ = 387334626. Its totient is φ = 110667032.

The previous prime is 221334023. The next prime is 221334107. The reversal of 221334068 is 860433122.

221334068 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 123165604 + 98168464 = 11098^2 + 9908^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 221334068.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27666755 + ... + 27666762.

It is an arithmetic number, because the mean of its divisors is an integer number (64555771).

Almost surely, 2^221334068 is an apocalyptic number.

It is an amenable number.

221334068 is a deficient number, since it is larger than the sum of its proper divisors (166000558).

221334068 is a wasteful number, since it uses less digits than its factorization.

221334068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55333521 (or 55333519 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 221334068 is about 14877.3004271608. The cubic root of 221334068 is about 604.8988451876.

The spelling of 221334068 in words is "two hundred twenty-one million, three hundred thirty-four thousand, sixty-eight".