20042422401401 has 2 divisors, whose sum is σ = 20042422401402. Its totient is φ = 20042422401400.

The previous prime is 20042422401371. The next prime is 20042422401451. The reversal of 20042422401401 is 10410422424002.

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., 19057066393600 + 985356007801 = 4365440^2 + 992651^2 .

It is a cyclic number.

It is not a de Polignac number, because 20042422401401 - 2³⁸ = 19767544494457 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 (20042422401451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021211200700 + 10021211200701.

It is an arithmetic number, because the mean of its divisors is an integer number (10021211200701).

Almost surely, 2^{20042422401401} is an apocalyptic number.

It is an amenable number.

20042422401401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042422401401 is an equidigital number, since it uses as much as digits as its factorization.

20042422401401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 20042422401401 its reverse (10410422424002), we get a palindrome (30452844825403).

The spelling of 20042422401401 in words is "twenty trillion, forty-two billion, four hundred twenty-two million, four hundred one thousand, four hundred one".