2001200221043 has 2 divisors, whose sum is σ = 2001200221044. Its totient is φ = 2001200221042.

The previous prime is 2001200220973. The next prime is 2001200221063. The reversal of 2001200221043 is 3401220021002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2001200221043 - 2¹⁸ = 2001199958899 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2001200221063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000600110521 + 1000600110522.

It is an arithmetic number, because the mean of its divisors is an integer number (1000600110522).

Almost surely, 2^{2001200221043} is an apocalyptic number.

2001200221043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001200221043 is an equidigital number, since it uses as much as digits as its factorization.

2001200221043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 2001200221043 its reverse (3401220021002), we get a palindrome (5402420242045).

The spelling of 2001200221043 in words is "two trillion, one billion, two hundred million, two hundred twenty-one thousand, forty-three".