4021124214161 has 2 divisors, whose sum is σ = 4021124214162. Its totient is φ = 4021124214160.

The previous prime is 4021124214139. The next prime is 4021124214167. The reversal of 4021124214161 is 1614124211204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2758970830225 + 1262153383936 = 1661015^2 + 1123456^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021124214161 - 2³⁴ = 4003944344977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4021124214167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010562107080 + 2010562107081.

It is an arithmetic number, because the mean of its divisors is an integer number (2010562107081).

Almost surely, 2^{4021124214161} is an apocalyptic number.

It is an amenable number.

4021124214161 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021124214161 is an equidigital number, since it uses as much as digits as its factorization.

4021124214161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 29.

Adding to 4021124214161 its reverse (1614124211204), we get a palindrome (5635248425365).

The spelling of 4021124214161 in words is "four trillion, twenty-one billion, one hundred twenty-four million, two hundred fourteen thousand, one hundred sixty-one".