212000022012 has 24 divisors (see below), whose sum is σ = 495571060096. Its totient is φ = 70537482288.

The previous prime is 212000022007. The next prime is 212000022089. The reversal of 212000022012 is 210220000212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16142128 + ... + 16155255.

Almost surely, 2^212000022012 is an apocalyptic number.

It is an amenable number.

212000022012 is an abundant number, since it is smaller than the sum of its proper divisors (283571038084).

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

212000022012 is a wasteful number, since it uses less digits than its factorization.

212000022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32297937 (or 32297935 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 212000022012 its reverse (210220000212), we get a palindrome (422220022224).

The spelling of 212000022012 in words is "two hundred twelve billion, twenty-two thousand, twelve".