42002220041 has 2 divisors, whose sum is σ = 42002220042. Its totient is φ = 42002220040.

The previous prime is 42002219927. The next prime is 42002220049. The reversal of 42002220041 is 14002220024.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41035010041 + 967210000 = 202571^2 + 31100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42002220041 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 (42002220049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21001110020 + 21001110021.

It is an arithmetic number, because the mean of its divisors is an integer number (21001110021).

Almost surely, 2^42002220041 is an apocalyptic number.

It is an amenable number.

42002220041 is a deficient number, since it is larger than the sum of its proper divisors (1).

42002220041 is an equidigital number, since it uses as much as digits as its factorization.

42002220041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 17.

Subtracting from 42002220041 its sum of digits (17), we obtain a palindrome (42002220024).

Adding to 42002220041 its reverse (14002220024), we get a palindrome (56004440065).

The spelling of 42002220041 in words is "forty-two billion, two million, two hundred twenty thousand, forty-one".