4144221011971 has 2 divisors, whose sum is σ = 4144221011972. Its totient is φ = 4144221011970.

The previous prime is 4144221011941. The next prime is 4144221012053. The reversal of 4144221011971 is 1791101224414.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4144221011971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4144221011971.

It is not a weakly prime, because it can be changed into another prime (4144221011941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2072110505985 + 2072110505986.

It is an arithmetic number, because the mean of its divisors is an integer number (2072110505986).

Almost surely, 2^{4144221011971} is an apocalyptic number.

4144221011971 is a deficient number, since it is larger than the sum of its proper divisors (1).

4144221011971 is an equidigital number, since it uses as much as digits as its factorization.

4144221011971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 4144221011971 in words is "four trillion, one hundred forty-four billion, two hundred twenty-one million, eleven thousand, nine hundred seventy-one".