3221111189 has 2 divisors, whose sum is σ = 3221111190. Its totient is φ = 3221111188.

The previous prime is 3221111143. The next prime is 3221111191. The reversal of 3221111189 is 9811111223.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2941218289 + 279892900 = 54233^2 + 16730^2 .

It is a cyclic number.

It is not a de Polignac number, because 3221111189 - 2¹² = 3221107093 is a prime.

Together with 3221111191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3221111129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610555594 + 1610555595.

It is an arithmetic number, because the mean of its divisors is an integer number (1610555595).

Almost surely, 2^3221111189 is an apocalyptic number.

It is an amenable number.

3221111189 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221111189 is an equidigital number, since it uses as much as digits as its factorization.

3221111189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 29.

The square root of 3221111189 is about 56754.8340584307. The cubic root of 3221111189 is about 1476.8460943443.

The spelling of 3221111189 in words is "three billion, two hundred twenty-one million, one hundred eleven thousand, one hundred eighty-nine".