2011020100209 has 24 divisors (see below), whose sum is σ = 2911203513504. Its totient is φ = 1337730432000.

The previous prime is 2011020100189. The next prime is 2011020100261. The reversal of 2011020100209 is 9020010201102.

It is not a de Polignac number, because 2011020100209 - 2⁸ = 2011020099953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011020100191 and 2011020100200.

It is not an unprimeable number, because it can be changed into a prime (2011020170209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8952154 + ... + 9174044.

It is an arithmetic number, because the mean of its divisors is an integer number (121300146396).

Almost surely, 2^{2011020100209} is an apocalyptic number.

It is an amenable number.

2011020100209 is a deficient number, since it is larger than the sum of its proper divisors (900183413295).

2011020100209 is a wasteful number, since it uses less digits than its factorization.

2011020100209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224109 (or 224106 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 2011020100209 in words is "two trillion, eleven billion, twenty million, one hundred thousand, two hundred nine".