68221201 has 4 divisors (see below), whose sum is σ = 69155812. Its totient is φ = 67286592.

The previous prime is 68221199. The next prime is 68221211. The reversal of 68221201 is 10212286.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40972801 + 27248400 = 6401^2 + 5220^2 .

It is a cyclic number.

It is not a de Polignac number, because 68221201 - 2¹ = 68221199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68221211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467196 + ... + 467341.

It is an arithmetic number, because the mean of its divisors is an integer number (17288953).

Almost surely, 2^68221201 is an apocalyptic number.

It is an amenable number.

68221201 is a deficient number, since it is larger than the sum of its proper divisors (934611).

68221201 is an equidigital number, since it uses as much as digits as its factorization.

68221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934610.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 68221201 is about 8259.6126422490. The cubic root of 68221201 is about 408.6076126236.

Adding to 68221201 its reverse (10212286), we get a palindrome (78433487).

The spelling of 68221201 in words is "sixty-eight million, two hundred twenty-one thousand, two hundred one".