2044221402169 has 2 divisors, whose sum is σ = 2044221402170. Its totient is φ = 2044221402168.

The previous prime is 2044221402161. The next prime is 2044221402203. The reversal of 2044221402169 is 9612041224402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1977997526569 + 66223875600 = 1406413^2 + 257340^2 .

It is a cyclic number.

It is not a de Polignac number, because 2044221402169 - 2³ = 2044221402161 is a prime.

It is a super-2 number, since 2×2044221402169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2044221402161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022110701084 + 1022110701085.

It is an arithmetic number, because the mean of its divisors is an integer number (1022110701085).

Almost surely, 2^{2044221402169} is an apocalyptic number.

It is an amenable number.

2044221402169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2044221402169 is an equidigital number, since it uses as much as digits as its factorization.

2044221402169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 2044221402169 in words is "two trillion, forty-four billion, two hundred twenty-one million, four hundred two thousand, one hundred sixty-nine".