3220400212049 has 2 divisors, whose sum is σ = 3220400212050. Its totient is φ = 3220400212048.

The previous prime is 3220400212021. The next prime is 3220400212087. The reversal of 3220400212049 is 9402120040223.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3208999311424 + 11400900625 = 1791368^2 + 106775^2 .

It is a cyclic number.

It is not a de Polignac number, because 3220400212049 - 2³² = 3216105244753 is a prime.

It is not a weakly prime, because it can be changed into another prime (3220400214049) 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, 1610200106024 + 1610200106025.

It is an arithmetic number, because the mean of its divisors is an integer number (1610200106025).

Almost surely, 2^{3220400212049} is an apocalyptic number.

It is an amenable number.

3220400212049 is a deficient number, since it is larger than the sum of its proper divisors (1).

3220400212049 is an equidigital number, since it uses as much as digits as its factorization.

3220400212049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 3220400212049 in words is "three trillion, two hundred twenty billion, four hundred million, two hundred twelve thousand, forty-nine".