3311132221 has 2 divisors, whose sum is σ = 3311132222. Its totient is φ = 3311132220.

The previous prime is 3311132219. The next prime is 3311132239. The reversal of 3311132221 is 1222311133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2411792100 + 899340121 = 49110^2 + 29989^2 .

It is a cyclic number.

It is not a de Polignac number, because 3311132221 - 2¹ = 3311132219 is a prime.

Together with 3311132219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3311132021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1655566110 + 1655566111.

It is an arithmetic number, because the mean of its divisors is an integer number (1655566111).

Almost surely, 2^3311132221 is an apocalyptic number.

It is an amenable number.

3311132221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3311132221 is an equidigital number, since it uses as much as digits as its factorization.

3311132221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 19.

The square root of 3311132221 is about 57542.4384346023. The cubic root of 3311132221 is about 1490.4777863580.

Adding to 3311132221 its reverse (1222311133), we get a palindrome (4533443354).

The spelling of 3311132221 in words is "three billion, three hundred eleven million, one hundred thirty-two thousand, two hundred twenty-one".