20010202012011 has 4 divisors (see below), whose sum is σ = 26680269349352. Its totient is φ = 13340134674672.

The previous prime is 20010202011997. The next prime is 20010202012043. The reversal of 20010202012011 is 11021020201002.

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

It is not a de Polignac number, because 20010202012011 - 2¹⁰ = 20010202010987 is a prime.

It is a super-2 number, since 2×20010202012011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010202012061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3335033668666 + ... + 3335033668671.

It is an arithmetic number, because the mean of its divisors is an integer number (6670067337338).

Almost surely, 2^{20010202012011} is an apocalyptic number.

20010202012011 is a deficient number, since it is larger than the sum of its proper divisors (6670067337341).

20010202012011 is an equidigital number, since it uses as much as digits as its factorization.

20010202012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6670067337340.

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

Adding to 20010202012011 its reverse (11021020201002), we get a palindrome (31031222213013).

The spelling of 20010202012011 in words is "twenty trillion, ten billion, two hundred two million, twelve thousand, eleven".