212212202211 has 20 divisors (see below), whose sum is σ = 324740267544. Its totient is φ = 138024194400.

The previous prime is 212212202161. The next prime is 212212202281. The reversal of 212212202211 is 112202212212.

It is a happy number.

212212202211 is a `hidden beast` number, since 2 + 1 + 221 + 220 + 221 + 1 = 666.

It is not a de Polignac number, because 212212202211 - 2¹⁴ = 212212185827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212212202281) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31946725 + ... + 31953366.

Almost surely, 2^212212202211 is an apocalyptic number.

212212202211 is a deficient number, since it is larger than the sum of its proper divisors (112528065333).

212212202211 is an equidigital number, since it uses as much as digits as its factorization.

212212202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63900144 (or 63900135 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212212202211 its reverse (112202212212), we get a palindrome (324414414423).

The spelling of 212212202211 in words is "two hundred twelve billion, two hundred twelve million, two hundred two thousand, two hundred eleven".