212021182012 has 18 divisors (see below), whose sum is σ = 394146645872. Its totient is φ = 99774673344.

The previous prime is 212021182007. The next prime is 212021182019. The reversal of 212021182012 is 210281120212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021182019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 91703508 + ... + 91705819.

Almost surely, 2^212021182012 is an apocalyptic number.

It is an amenable number.

212021182012 is a deficient number, since it is larger than the sum of its proper divisors (182125463860).

212021182012 is a wasteful number, since it uses less digits than its factorization.

212021182012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183409365 (or 183409346 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The spelling of 212021182012 in words is "two hundred twelve billion, twenty-one million, one hundred eighty-two thousand, twelve".