212214044500 has 24 divisors (see below), whose sum is σ = 463475474280. Its totient is φ = 84885617600.

The previous prime is 212214044477. The next prime is 212214044507. The reversal of 212214044500 is 5440412212.

212214044500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14612457924 + 197601586576 = 120882^2 + 444524^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212214044507) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 212213545 + ... + 212214544.

It is an arithmetic number, because the mean of its divisors is an integer number (19311478095).

Almost surely, 2^212214044500 is an apocalyptic number.

212214044500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212214044500 is an abundant number, since it is smaller than the sum of its proper divisors (251261429780).

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

212214044500 is a wasteful number, since it uses less digits than its factorization.

212214044500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424428108 (or 424428096 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 212214044500 its reverse (5440412212), we get a palindrome (217654456712).

The spelling of 212214044500 in words is "two hundred twelve billion, two hundred fourteen million, forty-four thousand, five hundred".