1000202120011 has 4 divisors (see below), whose sum is σ = 1000204607592. Its totient is φ = 1000199632432.

The previous prime is 1000202119999. The next prime is 1000202120063. The reversal of 1000202120011 is 1100212020001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1000202120011 - 2³⁵ = 965842381643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1000202120011.

It is not an unprimeable number, because it can be changed into a prime (1000202120311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487306 + ... + 1495951.

It is an arithmetic number, because the mean of its divisors is an integer number (250051151898).

Almost surely, 2^{1000202120011} is an apocalyptic number.

1000202120011 is a deficient number, since it is larger than the sum of its proper divisors (2487581).

1000202120011 is an equidigital number, since it uses as much as digits as its factorization.

1000202120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487580.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1000202120011 its reverse (1100212020001), we get a palindrome (2100414140012).

The spelling of 1000202120011 in words is "one trillion, two hundred two million, one hundred twenty thousand, eleven".