3132120221 has 8 divisors (see below), whose sum is σ = 3201747360. Its totient is φ = 3063166128.

The previous prime is 3132120181. The next prime is 3132120241. The reversal of 3132120221 is 1220212313.

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 3132120221 - 2¹⁸ = 3131858077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3132120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3132120241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158846 + ... + 177471.

It is an arithmetic number, because the mean of its divisors is an integer number (400218420).

Almost surely, 2^3132120221 is an apocalyptic number.

It is an amenable number.

3132120221 is a deficient number, since it is larger than the sum of its proper divisors (69627139).

3132120221 is a wasteful number, since it uses less digits than its factorization.

3132120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336523.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3132120221 is about 55965.3483952347. The cubic root of 3132120221 is about 1463.1184083153.

Adding to 3132120221 its reverse (1220212313), we get a palindrome (4352332534).

The spelling of 3132120221 in words is "three billion, one hundred thirty-two million, one hundred twenty thousand, two hundred twenty-one".