2111010100209 has 24 divisors (see below), whose sum is σ = 3162242839392. Its totient is φ = 1407308320800.

The previous prime is 2111010100183. The next prime is 2111010100219. The reversal of 2111010100209 is 9020010101112.

It is a happy number.

It is not a de Polignac number, because 2111010100209 - 2⁸ = 2111010099953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2111010100191 and 2111010100200.

It is not an unprimeable number, because it can be changed into a prime (2111010100219) 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, 16402309 + ... + 16530509.

It is an arithmetic number, because the mean of its divisors is an integer number (131760118308).

Almost surely, 2^{2111010100209} is an apocalyptic number.

It is an amenable number.

2111010100209 is a deficient number, since it is larger than the sum of its proper divisors (1051232739183).

2111010100209 is an equidigital number, since it uses as much as digits as its factorization.

2111010100209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195979 (or 195967 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 2111010100209 in words is "two trillion, one hundred eleven billion, ten million, one hundred thousand, two hundred nine".