212134443400 has 48 divisors (see below), whose sum is σ = 538050093840. Its totient is φ = 77139796800.

The previous prime is 212134443397. The next prime is 212134443421. The reversal of 212134443400 is 4344431212.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48210174 + ... + 48214573.

It is an arithmetic number, because the mean of its divisors is an integer number (11209376955).

Almost surely, 2^212134443400 is an apocalyptic number.

212134443400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212134443400 is an abundant number, since it is smaller than the sum of its proper divisors (325915650440).

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

212134443400 is a wasteful number, since it uses less digits than its factorization.

212134443400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96424774 (or 96424765 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 212134443400 its reverse (4344431212), we get a palindrome (216478874612).

The spelling of 212134443400 in words is "two hundred twelve billion, one hundred thirty-four million, four hundred forty-three thousand, four hundred".