212021111212 has 12 divisors (see below), whose sum is σ = 371182068880. Its totient is φ = 105969091536.

The previous prime is 212021111201. The next prime is 212021111251. The reversal of 212021111212 is 212111120212.

212021111212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 10354512 + ... + 10374967.

Almost surely, 2^212021111212 is an apocalyptic number.

It is an amenable number.

212021111212 is a deficient number, since it is larger than the sum of its proper divisors (159160957668).

212021111212 is a wasteful number, since it uses less digits than its factorization.

212021111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20732040 (or 20732038 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212021111212 its reverse (212111120212), we get a palindrome (424132231424).

The spelling of 212021111212 in words is "two hundred twelve billion, twenty-one million, one hundred eleven thousand, two hundred twelve".