2001102120799 has 2 divisors, whose sum is σ = 2001102120800. Its totient is φ = 2001102120798.

The previous prime is 2001102120781. The next prime is 2001102120839. The reversal of 2001102120799 is 9970212011002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001102120799 - 2¹⁵ = 2001102088031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001102120709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000551060399 + 1000551060400.

It is an arithmetic number, because the mean of its divisors is an integer number (1000551060400).

Almost surely, 2^{2001102120799} is an apocalyptic number.

2001102120799 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001102120799 is an equidigital number, since it uses as much as digits as its factorization.

2001102120799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 34.

The spelling of 2001102120799 in words is "two trillion, one billion, one hundred two million, one hundred twenty thousand, seven hundred ninety-nine".