212122000212 has 12 divisors (see below), whose sum is σ = 494951333856. Its totient is φ = 70707333400.

The previous prime is 212122000187. The next prime is 212122000217. The reversal of 212122000212 is 212000221212.

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 = 212122000191 and 212122000200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212122000217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8838416664 + ... + 8838416687.

It is an arithmetic number, because the mean of its divisors is an integer number (41245944488).

Almost surely, 2^212122000212 is an apocalyptic number.

It is an amenable number.

212122000212 is an abundant number, since it is smaller than the sum of its proper divisors (282829333644).

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

212122000212 is a wasteful number, since it uses less digits than its factorization.

212122000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17676833358 (or 17676833356 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212122000212 its reverse (212000221212), we get a palindrome (424122221424).

The spelling of 212122000212 in words is "two hundred twelve billion, one hundred twenty-two million, two hundred twelve", and thus it is an aban number.