2101202020011 has 4 divisors (see below), whose sum is σ = 2801602693352. Its totient is φ = 1400801346672.

The previous prime is 2101202020007. The next prime is 2101202020031. The reversal of 2101202020011 is 1100202021012.

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

It is not a de Polignac number, because 2101202020011 - 2² = 2101202020007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101202020031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350200336666 + ... + 350200336671.

It is an arithmetic number, because the mean of its divisors is an integer number (700400673338).

Almost surely, 2^{2101202020011} is an apocalyptic number.

2101202020011 is a deficient number, since it is larger than the sum of its proper divisors (700400673341).

2101202020011 is an equidigital number, since it uses as much as digits as its factorization.

2101202020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700400673340.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2101202020011 its reverse (1100202021012), we get a palindrome (3201404041023).

The spelling of 2101202020011 in words is "two trillion, one hundred one billion, two hundred two million, twenty thousand, eleven".