212211100212 has 24 divisors (see below), whose sum is σ = 495564140736. Its totient is φ = 70679189568.

The previous prime is 212211100207. The next prime is 212211100223. The reversal of 212211100212 is 212001112212.

It is a junction number, because it is equal to n+sod(n) for n = 212211100191 and 212211100200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7215193 + ... + 7244544.

It is an arithmetic number, because the mean of its divisors is an integer number (20648505864).

Almost surely, 2^212211100212 is an apocalyptic number.

It is an amenable number.

212211100212 is an abundant number, since it is smaller than the sum of its proper divisors (283353040524).

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

212211100212 is a wasteful number, since it uses less digits than its factorization.

212211100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14460967 (or 14460965 counting only the distinct ones).

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

Adding to 212211100212 its reverse (212001112212), we get a palindrome (424212212424).

The spelling of 212211100212 in words is "two hundred twelve billion, two hundred eleven million, one hundred thousand, two hundred twelve".