212021111000 has 64 divisors (see below), whose sum is σ = 496198872000. Its totient is φ = 84796569600.

The previous prime is 212021110943. The next prime is 212021111023. The reversal of 212021111000 is 111120212.

212021111000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11950136 + ... + 11967864.

It is an arithmetic number, because the mean of its divisors is an integer number (7753107375).

Almost surely, 2^212021111000 is an apocalyptic number.

212021111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212021111000 is an abundant number, since it is smaller than the sum of its proper divisors (284177761000).

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

212021111000 is a wasteful number, since it uses less digits than its factorization.

212021111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29709 (or 29695 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 212021111000 its reverse (111120212), we get a palindrome (212132231212).

The spelling of 212021111000 in words is "two hundred twelve billion, twenty-one million, one hundred eleven thousand".