3213221211 has 16 divisors (see below), whose sum is σ = 4775646720. Its totient is φ = 2135253960.

The previous prime is 3213221159. The next prime is 3213221213. The reversal of 3213221211 is 1121223123.

3213221211 is a `hidden beast` number, since 321 + 322 + 1 + 21 + 1 = 666.

It is not a de Polignac number, because 3213221211 - 2¹⁰ = 3213220187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3213221213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182935 + ... + 199728.

It is an arithmetic number, because the mean of its divisors is an integer number (298477920).

Almost surely, 2^3213221211 is an apocalyptic number.

3213221211 is a deficient number, since it is larger than the sum of its proper divisors (1562425509).

3213221211 is a wasteful number, since it uses less digits than its factorization.

3213221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382983 (or 382977 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 3213221211 is about 56685.2821374296. The cubic root of 3213221211 is about 1475.6392840849.

Adding to 3213221211 its reverse (1121223123), we get a palindrome (4334444334).

The spelling of 3213221211 in words is "three billion, two hundred thirteen million, two hundred twenty-one thousand, two hundred eleven".