3221120869 has 2 divisors, whose sum is σ = 3221120870. Its totient is φ = 3221120868.

The previous prime is 3221120759. The next prime is 3221120887. The reversal of 3221120869 is 9680211223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3206390625 + 14730244 = 56625^2 + 3838^2 .

It is a cyclic number.

It is not a de Polignac number, because 3221120869 - 2¹⁹ = 3220596581 is a prime.

It is a super-2 number, since 2×3221120869² = 20751239305414630322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3221120899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610560434 + 1610560435.

It is an arithmetic number, because the mean of its divisors is an integer number (1610560435).

Almost surely, 2^3221120869 is an apocalyptic number.

It is an amenable number.

3221120869 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221120869 is an equidigital number, since it uses as much as digits as its factorization.

3221120869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 3221120869 is about 56754.9193374460. The cubic root of 3221120869 is about 1476.8475737361.

The spelling of 3221120869 in words is "three billion, two hundred twenty-one million, one hundred twenty thousand, eight hundred sixty-nine".