211001122212 has 12 divisors (see below), whose sum is σ = 492335951856. Its totient is φ = 70333707400.

The previous prime is 211001122187. The next prime is 211001122247. The reversal of 211001122212 is 212221100112.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 211001122191 and 211001122200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8791713414 + ... + 8791713437.

It is an arithmetic number, because the mean of its divisors is an integer number (41027995988).

Almost surely, 2^211001122212 is an apocalyptic number.

It is an amenable number.

211001122212 is an abundant number, since it is smaller than the sum of its proper divisors (281334829644).

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

211001122212 is a wasteful number, since it uses less digits than its factorization.

211001122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17583426858 (or 17583426856 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211001122212 its reverse (212221100112), we get a palindrome (423222222324).

The spelling of 211001122212 in words is "two hundred eleven billion, one million, one hundred twenty-two thousand, two hundred twelve".