33220201 has 4 divisors (see below), whose sum is σ = 37965952. Its totient is φ = 28474452.

The previous prime is 33220199. The next prime is 33220217. The reversal of 33220201 is 10202233.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10202233 = 367 ⋅27799.

It is a cyclic number.

It is not a de Polignac number, because 33220201 - 2¹ = 33220199 is a prime.

It is a super-2 number, since 2×33220201² = 2207163508960802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33220001) 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, 2372865 + ... + 2372878.

It is an arithmetic number, because the mean of its divisors is an integer number (9491488).

Almost surely, 2^33220201 is an apocalyptic number.

It is an amenable number.

33220201 is a deficient number, since it is larger than the sum of its proper divisors (4745751).

33220201 is an equidigital number, since it uses as much as digits as its factorization.

33220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4745750.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 33220201 is about 5763.6968171478. The cubic root of 33220201 is about 321.4652886263.

Adding to 33220201 its reverse (10202233), we get a palindrome (43422434).

The spelling of 33220201 in words is "thirty-three million, two hundred twenty thousand, two hundred one".