200120200012001 has 2 divisors, whose sum is σ = 200120200012002. Its totient is φ = 200120200012000.

The previous prime is 200120200011997. The next prime is 200120200012027. The reversal of 200120200012001 is 100210002021002.

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., 163541230728976 + 36578969283025 = 12788324^2 + 6048055^2 .

It is a cyclic number.

It is not a de Polignac number, because 200120200012001 - 2² = 200120200011997 is a prime.

It is not a weakly prime, because it can be changed into another prime (200120200012301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060100006000 + 100060100006001.

It is an arithmetic number, because the mean of its divisors is an integer number (100060100006001).

Almost surely, 2^{200120200012001} is an apocalyptic number.

It is an amenable number.

200120200012001 is a deficient number, since it is larger than the sum of its proper divisors (1).

200120200012001 is an equidigital number, since it uses as much as digits as its factorization.

200120200012001 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 11.

Adding to 200120200012001 its reverse (100210002021002), we get a palindrome (300330202033003).

The spelling of 200120200012001 in words is "two hundred trillion, one hundred twenty billion, two hundred million, twelve thousand, one".