212212011 has 8 divisors (see below), whose sum is σ = 308672064. Its totient is φ = 128613320.

The previous prime is 212211997. The next prime is 212212051. The reversal of 212212011 is 110212212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212212011 - 2¹⁸ = 211949867 is a prime.

It is a super-2 number, since 2×212212011² = 90067875225328242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212212051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3215301 + ... + 3215366.

It is an arithmetic number, because the mean of its divisors is an integer number (38584008).

Almost surely, 2^212212011 is an apocalyptic number.

212212011 is a deficient number, since it is larger than the sum of its proper divisors (96460053).

212212011 is a wasteful number, since it uses less digits than its factorization.

212212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6430681.

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

The square root of 212212011 is about 14567.4984468851. The cubic root of 212212011 is about 596.4718975965.

Adding to 212212011 its reverse (110212212), we get a palindrome (322424223).

It can be divided in two parts, 21221 and 2011, that added together give a palindrome (23232).

The spelling of 212212011 in words is "two hundred twelve million, two hundred twelve thousand, eleven".