120202002001 has 2 divisors, whose sum is σ = 120202002002. Its totient is φ = 120202002000.

The previous prime is 120202001999. The next prime is 120202002007. The reversal of 120202002001 is 100200202021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101760362001 + 18441640000 = 318999^2 + 135800^2 .

It is a cyclic number.

It is not a de Polignac number, because 120202002001 - 2¹ = 120202001999 is a prime.

Together with 120202001999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (120202002007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60101001000 + 60101001001.

It is an arithmetic number, because the mean of its divisors is an integer number (60101001001).

Almost surely, 2^120202002001 is an apocalyptic number.

It is an amenable number.

120202002001 is a deficient number, since it is larger than the sum of its proper divisors (1).

120202002001 is an equidigital number, since it uses as much as digits as its factorization.

120202002001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 120202002001 its reverse (100200202021), we get a palindrome (220402204022).

The spelling of 120202002001 in words is "one hundred twenty billion, two hundred two million, two thousand, one".