212012300240 has 160 divisors (see below), whose sum is σ = 541632583296. Its totient is φ = 76695091200.

The previous prime is 212012300239. The next prime is 212012300251. The reversal of 212012300240 is 42003210212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45581915 + ... + 45586565.

Almost surely, 2^212012300240 is an apocalyptic number.

212012300240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212012300240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270816291648).

212012300240 is an abundant number, since it is smaller than the sum of its proper divisors (329620283056).

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

212012300240 is a wasteful number, since it uses less digits than its factorization.

212012300240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557 (or 5551 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 212012300240 its reverse (42003210212), we get a palindrome (254015510452).

The spelling of 212012300240 in words is "two hundred twelve billion, twelve million, three hundred thousand, two hundred forty".