42102205001 has 2 divisors, whose sum is σ = 42102205002. Its totient is φ = 42102205000.

The previous prime is 42102204967. The next prime is 42102205039. The reversal of 42102205001 is 10050220124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28375739401 + 13726465600 = 168451^2 + 117160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42102205001 is a prime.

It is not a weakly prime, because it can be changed into another prime (42102205081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21051102500 + 21051102501.

It is an arithmetic number, because the mean of its divisors is an integer number (21051102501).

Almost surely, 2^42102205001 is an apocalyptic number.

It is an amenable number.

42102205001 is a deficient number, since it is larger than the sum of its proper divisors (1).

42102205001 is an equidigital number, since it uses as much as digits as its factorization.

42102205001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 42102205001 its reverse (10050220124), we get a palindrome (52152425125).

The spelling of 42102205001 in words is "forty-two billion, one hundred two million, two hundred five thousand, one".