2102205211 has 4 divisors (see below), whose sum is σ = 2103360192. Its totient is φ = 2101050232.

The previous prime is 2102205191. The next prime is 2102205233. The reversal of 2102205211 is 1125022012.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2102205211 - 2¹¹ = 2102203163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102205251) 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, 574756 + ... + 578401.

It is an arithmetic number, because the mean of its divisors is an integer number (525840048).

Almost surely, 2^2102205211 is an apocalyptic number.

2102205211 is a deficient number, since it is larger than the sum of its proper divisors (1154981).

2102205211 is a wasteful number, since it uses less digits than its factorization.

2102205211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154980.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 2102205211 is about 45849.8114608992. The cubic root of 2102205211 is about 1281.0272537750.

Adding to 2102205211 its reverse (1125022012), we get a palindrome (3227227223).

The spelling of 2102205211 in words is "two billion, one hundred two million, two hundred five thousand, two hundred eleven".