3132330221 has 2 divisors, whose sum is σ = 3132330222. Its totient is φ = 3132330220.

The previous prime is 3132330211. The next prime is 3132330239. The reversal of 3132330221 is 1220332313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2268616900 + 863713321 = 47630^2 + 29389^2 .

It is a cyclic number.

It is not a de Polignac number, because 3132330221 - 2¹⁸ = 3132068077 is a prime.

It is a super-2 number, since 2×3132330221² = 19622985226779817682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3132330193 and 3132330202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3132330211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1566165110 + 1566165111.

It is an arithmetic number, because the mean of its divisors is an integer number (1566165111).

Almost surely, 2^3132330221 is an apocalyptic number.

It is an amenable number.

3132330221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3132330221 is an equidigital number, since it uses as much as digits as its factorization.

3132330221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 3132330221 is about 55967.2245247162. The cubic root of 3132330221 is about 1463.1511069324.

Adding to 3132330221 its reverse (1220332313), we get a palindrome (4352662534).

The spelling of 3132330221 in words is "three billion, one hundred thirty-two million, three hundred thirty thousand, two hundred twenty-one".