211102212 has 48 divisors (see below), whose sum is σ = 503842752. Its totient is φ = 68772480.

The previous prime is 211102207. The next prime is 211102249. The reversal of 211102212 is 212201112.

It is a super-2 number, since 2×211102212² = 89128287822585888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125803 + ... + 127469.

It is an arithmetic number, because the mean of its divisors is an integer number (10496724).

Almost surely, 2^211102212 is an apocalyptic number.

It is an amenable number.

211102212 is an abundant number, since it is smaller than the sum of its proper divisors (292740540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211102212 is a wasteful number, since it uses less digits than its factorization.

211102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 211102212 is about 14529.3569024923. The cubic root of 211102212 is about 595.4302958073.

Adding to 211102212 its reverse (212201112), we get a palindrome (423303324).

The spelling of 211102212 in words is "two hundred eleven million, one hundred two thousand, two hundred twelve".