2102020211 has 2 divisors, whose sum is σ = 2102020212. Its totient is φ = 2102020210.

The previous prime is 2102020183. The next prime is 2102020247. The reversal of 2102020211 is 1120202012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102020211 - 2⁶ = 2102020147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102020192 and 2102020201.

It is not a weakly prime, because it can be changed into another prime (2102020511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051010105 + 1051010106.

It is an arithmetic number, because the mean of its divisors is an integer number (1051010106).

Almost surely, 2^2102020211 is an apocalyptic number.

2102020211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102020211 is an equidigital number, since it uses as much as digits as its factorization.

2102020211 is an evil number, because the sum of its binary digits is even.

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

The square root of 2102020211 is about 45847.7939600151. The cubic root of 2102020211 is about 1280.9896746663.

Adding to 2102020211 its reverse (1120202012), we get a palindrome (3222222223).

The spelling of 2102020211 in words is "two billion, one hundred two million, twenty thousand, two hundred eleven".