212221300211340 has 48 divisors (see below), whose sum is σ = 679108160677632. Its totient is φ = 48507725762496.

The previous prime is 212221300211317. The next prime is 212221300211359. The reversal of 212221300211340 is 43112003122212.

212221300211340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 212221300211340.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252644404594 + ... + 252644405433.

It is an arithmetic number, because the mean of its divisors is an integer number (14148086680784).

Almost surely, 2^{212221300211340} is an apocalyptic number.

212221300211340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212221300211340 is an abundant number, since it is smaller than the sum of its proper divisors (466886860466292).

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

212221300211340 is a wasteful number, since it uses less digits than its factorization.

212221300211340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505288810046 (or 505288810044 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 212221300211340 its reverse (43112003122212), we get a palindrome (255333303333552).

The spelling of 212221300211340 in words is "two hundred twelve trillion, two hundred twenty-one billion, three hundred million, two hundred eleven thousand, three hundred forty".