2102212211 has 4 divisors (see below), whose sum is σ = 2293322424. Its totient is φ = 1911102000.

The previous prime is 2102212187. The next prime is 2102212219. The reversal of 2102212211 is 1122122012.

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 2102212211 - 2¹⁰ = 2102211187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102212219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95555090 + ... + 95555111.

It is an arithmetic number, because the mean of its divisors is an integer number (573330606).

Almost surely, 2^2102212211 is an apocalyptic number.

2102212211 is a deficient number, since it is larger than the sum of its proper divisors (191110213).

2102212211 is a wasteful number, since it uses less digits than its factorization.

2102212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191110212.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2102212211 is about 45849.8877970274. The cubic root of 2102212211 is about 1281.0286756439.

Adding to 2102212211 its reverse (1122122012), we get a palindrome (3224334223).

It can be divided in two parts, 21022 and 12211, that added together give a palindrome (33233).

The spelling of 2102212211 in words is "two billion, one hundred two million, two hundred twelve thousand, two hundred eleven".