211022211212 has 12 divisors (see below), whose sum is σ = 377876983176. Its totient is φ = 103057358880.

The previous prime is 211022211187. The next prime is 211022211263. The reversal of 211022211212 is 212112220112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613436489 + ... + 613436832.

It is an arithmetic number, because the mean of its divisors is an integer number (31489748598).

Almost surely, 2^211022211212 is an apocalyptic number.

It is an amenable number.

211022211212 is a deficient number, since it is larger than the sum of its proper divisors (166854771964).

211022211212 is a wasteful number, since it uses less digits than its factorization.

211022211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226873368 (or 1226873366 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211022211212 its reverse (212112220112), we get a palindrome (423134431324).

The spelling of 211022211212 in words is "two hundred eleven billion, twenty-two million, two hundred eleven thousand, two hundred twelve".