212445221043320 has 32 divisors (see below), whose sum is σ = 478234578388320. Its totient is φ = 84936696232320.

The previous prime is 212445221043301. The next prime is 212445221043331. The reversal of 212445221043320 is 23340122544212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1293422636 + ... + 1293586875.

It is an arithmetic number, because the mean of its divisors is an integer number (14944830574635).

Almost surely, 2^{212445221043320} is an apocalyptic number.

212445221043320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212445221043320 is an abundant number, since it is smaller than the sum of its proper divisors (265789357345000).

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

212445221043320 is a wasteful number, since it uses less digits than its factorization.

212445221043320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587011575 (or 2587011571 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 212445221043320 its reverse (23340122544212), we get a palindrome (235785343587532).

The spelling of 212445221043320 in words is "two hundred twelve trillion, four hundred forty-five billion, two hundred twenty-one million, forty-three thousand, three hundred twenty".