2001222101143 has 2 divisors, whose sum is σ = 2001222101144. Its totient is φ = 2001222101142.

The previous prime is 2001222101101. The next prime is 2001222101189. The reversal of 2001222101143 is 3411012221002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001222101143 - 2¹³ = 2001222092951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2001222101143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001222101743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000611050571 + 1000611050572.

It is an arithmetic number, because the mean of its divisors is an integer number (1000611050572).

Almost surely, 2^{2001222101143} is an apocalyptic number.

2001222101143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001222101143 is an equidigital number, since it uses as much as digits as its factorization.

2001222101143 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 19.

Adding to 2001222101143 its reverse (3411012221002), we get a palindrome (5412234322145).

The spelling of 2001222101143 in words is "two trillion, one billion, two hundred twenty-two million, one hundred one thousand, one hundred forty-three".