1068221 has 8 divisors (see below), whose sum is σ = 1331904. Its totient is φ = 832320.

The previous prime is 1068217. The next prime is 1068233. The reversal of 1068221 is 1228601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1068221 - 2² = 1068217 is a prime.

It is a super-2 number, since 2×1068221² = 2282192209682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1068193 and 1068202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6860 + ... + 7013.

It is an arithmetic number, because the mean of its divisors is an integer number (166488).

2^1068221 is an apocalyptic number.

1068221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1068221 is a deficient number, since it is larger than the sum of its proper divisors (263683).

1068221 is a wasteful number, since it uses less digits than its factorization.

1068221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13891.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1068221 is about 1033.5477734483. The cubic root of 1068221 is about 102.2241960779.

The spelling of 1068221 in words is "one million, sixty-eight thousand, two hundred twenty-one".