212021211000 has 128 divisors (see below), whose sum is σ = 679385079360. Its totient is φ = 55010880000.

The previous prime is 212021210953. The next prime is 212021211019. The reversal of 212021211000 is 112120212.

212021211000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 844051 + ... + 1066050.

Almost surely, 2^212021211000 is an apocalyptic number.

212021211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212021211000 is an abundant number, since it is smaller than the sum of its proper divisors (467363868360).

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

212021211000 is a wasteful number, since it uses less digits than its factorization.

212021211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910162 (or 1910148 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 212021211000 its reverse (112120212), we get a palindrome (212133331212).

The spelling of 212021211000 in words is "two hundred twelve billion, twenty-one million, two hundred eleven thousand".