3221240133 has 4 divisors (see below), whose sum is σ = 4294986848. Its totient is φ = 2147493420.

The previous prime is 3221240111. The next prime is 3221240159. The reversal of 3221240133 is 3310421223.

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: 3310421223 = 3 ⋅1103473741.

It is not a de Polignac number, because 3221240133 - 2¹² = 3221236037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221240233) 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, 536873353 + ... + 536873358.

It is an arithmetic number, because the mean of its divisors is an integer number (1073746712).

Almost surely, 2^3221240133 is an apocalyptic number.

It is an amenable number.

3221240133 is a deficient number, since it is larger than the sum of its proper divisors (1073746715).

3221240133 is a wasteful number, since it uses less digits than its factorization.

3221240133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073746714.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3221240133 is about 56755.9700207828. The cubic root of 3221240133 is about 1476.8658005772.

Adding to 3221240133 its reverse (3310421223), we get a palindrome (6531661356).

The spelling of 3221240133 in words is "three billion, two hundred twenty-one million, two hundred forty thousand, one hundred thirty-three".