20042422401061 has 2 divisors, whose sum is σ = 20042422401062. Its totient is φ = 20042422401060.

The previous prime is 20042422401049. The next prime is 20042422401083. The reversal of 20042422401061 is 16010422424002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16496846380161 + 3545576020900 = 4061631^2 + 1882970^2 .

It is a cyclic number.

It is not a de Polignac number, because 20042422401061 - 2⁴³ = 11246329378853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20042422801061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021211200530 + 10021211200531.

It is an arithmetic number, because the mean of its divisors is an integer number (10021211200531).

Almost surely, 2^{20042422401061} is an apocalyptic number.

It is an amenable number.

20042422401061 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042422401061 is an equidigital number, since it uses as much as digits as its factorization.

20042422401061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 20042422401061 its reverse (16010422424002), we get a palindrome (36052844825063).

The spelling of 20042422401061 in words is "twenty trillion, forty-two billion, four hundred twenty-two million, four hundred one thousand, sixty-one".