212003443400 has 96 divisors (see below), whose sum is σ = 564454200000. Its totient is φ = 72540990720.

The previous prime is 212003443369. The next prime is 212003443427. The reversal of 212003443400 is 4344300212.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 546866 + ... + 850334.

It is an arithmetic number, because the mean of its divisors is an integer number (5879731250).

Almost surely, 2^212003443400 is an apocalyptic number.

212003443400 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 212003443400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282227100000).

212003443400 is an abundant number, since it is smaller than the sum of its proper divisors (352450756600).

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

212003443400 is a wasteful number, since it uses less digits than its factorization.

212003443400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303991 (or 303982 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 212003443400 its reverse (4344300212), we get a palindrome (216347743612).

The spelling of 212003443400 in words is "two hundred twelve billion, three million, four hundred forty-three thousand, four hundred".