33221201 has 4 divisors (see below), whose sum is σ = 35776692. Its totient is φ = 30665712.

The previous prime is 33221197. The next prime is 33221249. The reversal of 33221201 is 10212233.

It is a happy number.

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 20611600 + 12609601 = 4540^2 + 3551^2 .

It is a cyclic number.

It is not a de Polignac number, because 33221201 - 2² = 33221197 is a prime.

It is a super-2 number, since 2×33221201² = 2207296391764802, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (33221261) 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, 1277726 + ... + 1277751.

It is an arithmetic number, because the mean of its divisors is an integer number (8944173).

Almost surely, 2^33221201 is an apocalyptic number.

It is an amenable number.

33221201 is a deficient number, since it is larger than the sum of its proper divisors (2555491).

33221201 is a wasteful number, since it uses less digits than its factorization.

33221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555490.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 33221201 is about 5763.7835663737. The cubic root of 33221201 is about 321.4685141944.

Adding to 33221201 its reverse (10212233), we get a palindrome (43433434).

The spelling of 33221201 in words is "thirty-three million, two hundred twenty-one thousand, two hundred one".