212321301000 has 128 divisors (see below), whose sum is σ = 663218150400. Its totient is φ = 56552716800.

The previous prime is 212321300951. The next prime is 212321301013. The reversal of 212321301000 is 103123212.

212321301000 is digitally balanced in base 2, 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 (15).

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 31 ways as a sum of consecutive naturals, for example, 2547996 + ... + 2630004.

It is an arithmetic number, because the mean of its divisors is an integer number (5181391800).

Almost surely, 2^212321301000 is an apocalyptic number.

212321301000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212321301000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331609075200).

212321301000 is an abundant number, since it is smaller than the sum of its proper divisors (450896849400).

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

212321301000 is a wasteful number, since it uses less digits than its factorization.

212321301000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82896 (or 82882 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 212321301000 its reverse (103123212), we get a palindrome (212424424212).

The spelling of 212321301000 in words is "two hundred twelve billion, three hundred twenty-one million, three hundred one thousand".