212100448 has 24 divisors (see below), whose sum is σ = 477226512. Its totient is φ = 90900096.

The previous prime is 212100437. The next prime is 212100527. The reversal of 212100448 is 844001212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473215 + ... + 473662.

It is an arithmetic number, because the mean of its divisors is an integer number (19884438).

Almost surely, 2^212100448 is an apocalyptic number.

212100448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

212100448 is an abundant number, since it is smaller than the sum of its proper divisors (265126064).

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

212100448 is an equidigital number, since it uses as much as digits as its factorization.

212100448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946894 (or 946886 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 212100448 is about 14563.6687685487. The cubic root of 212100448 is about 596.3673545682.

The spelling of 212100448 in words is "two hundred twelve million, one hundred thousand, four hundred forty-eight".