2001020202011 has 16 divisors (see below), whose sum is σ = 2013507175680. Its totient is φ = 1988583086880.

The previous prime is 2001020201987. The next prime is 2001020202029. The reversal of 2001020202011 is 1102020201002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2001020202011 - 2¹⁰ = 2001020200987 is a prime.

It is a super-2 number, since 2×2001020202011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001020201983 and 2001020202001.

It is not an unprimeable number, because it can be changed into a prime (2001020202031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135959225 + ... + 135973941.

It is an arithmetic number, because the mean of its divisors is an integer number (125844198480).

Almost surely, 2^{2001020202011} is an apocalyptic number.

2001020202011 is a deficient number, since it is larger than the sum of its proper divisors (12486973669).

2001020202011 is a wasteful number, since it uses less digits than its factorization.

2001020202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16354.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2001020202011 its reverse (1102020201002), we get a palindrome (3103040403013).

The spelling of 2001020202011 in words is "two trillion, one billion, twenty million, two hundred two thousand, eleven".