212005230112240 has 40 divisors (see below), whose sum is σ = 492915065354208. Its totient is φ = 84801592200960.

The previous prime is 212005230112217. The next prime is 212005230112243. The reversal of 212005230112240 is 42211032500212.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212005230112243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5998989 + ... + 21447571.

Almost surely, 2^{212005230112240} is an apocalyptic number.

212005230112240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212005230112240 is an abundant number, since it is smaller than the sum of its proper divisors (280909835241968).

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

212005230112240 is a wasteful number, since it uses less digits than its factorization.

212005230112240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15620137 (or 15620131 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 212005230112240 its reverse (42211032500212), we get a palindrome (254216262612452).

The spelling of 212005230112240 in words is "two hundred twelve trillion, five billion, two hundred thirty million, one hundred twelve thousand, two hundred forty".