3213111222 has 12 divisors (see below), whose sum is σ = 6961741020. Its totient is φ = 1071037068.

The previous prime is 3213111217. The next prime is 3213111227. The reversal of 3213111222 is 2221113123.

3213111222 is a `hidden beast` number, since 321 + 311 + 12 + 22 = 666.

It is an interprime number because it is at equal distance from previous prime (3213111217) and next prime (3213111227).

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 178506179 = 3213111222 / (3 + 2 + 1 + 3 + 1 + 1 + 1 + 2 + 2 + 2).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 3213111195 and 3213111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213111227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89253072 + ... + 89253107.

It is an arithmetic number, because the mean of its divisors is an integer number (580145085).

Almost surely, 2^3213111222 is an apocalyptic number.

3213111222 is an abundant number, since it is smaller than the sum of its proper divisors (3748629798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3213111222 is a wasteful number, since it uses less digits than its factorization.

3213111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178506187 (or 178506184 counting only the distinct ones).

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

The square root of 3213111222 is about 56684.3119566605. The cubic root of 3213111222 is about 1475.6224467815.

Adding to 3213111222 its reverse (2221113123), we get a palindrome (5434224345).

The spelling of 3213111222 in words is "three billion, two hundred thirteen million, one hundred eleven thousand, two hundred twenty-two".