3133020221 has 2 divisors, whose sum is σ = 3133020222. Its totient is φ = 3133020220.

The previous prime is 3133020203. The next prime is 3133020227. The reversal of 3133020221 is 1220203313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2940892900 + 192127321 = 54230^2 + 13861^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3133020221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3133020221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3133020227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1566510110 + 1566510111.

It is an arithmetic number, because the mean of its divisors is an integer number (1566510111).

Almost surely, 2^3133020221 is an apocalyptic number.

It is an amenable number.

3133020221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3133020221 is an equidigital number, since it uses as much as digits as its factorization.

3133020221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 3133020221 is about 55973.3885073970. The cubic root of 3133020221 is about 1463.2585349568.

Adding to 3133020221 its reverse (1220203313), we get a palindrome (4353223534).

The spelling of 3133020221 in words is "three billion, one hundred thirty-three million, twenty thousand, two hundred twenty-one".