212232640050 has 378 divisors, whose sum is σ = 629605469133. Its totient is φ = 53194488480.

The previous prime is 212232640049. The next prime is 212232640057. The reversal of 212232640050 is 50046232212.

It is a happy number.

212232640050 is a `hidden beast` number, since 2 + 12 + 2 + 3 + 2 + 640 + 0 + 5 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 207987987249 + 4244652801 = 456057^2 + 65151^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=325755.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 212232639996 and 212232640023.

It is not an unprimeable number, because it can be changed into a prime (212232640057) by changing a digit.

It is a polite number, since it can be written in 188 ways as a sum of consecutive naturals, for example, 1671123087 + ... + 1671123213.

Almost surely, 2^212232640050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212232640050

212232640050 is an abundant number, since it is smaller than the sum of its proper divisors (417372829083).

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

212232640050 is an equidigital number, since it uses as much as digits as its factorization.

212232640050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 212232640050 its reverse (50046232212), we get a palindrome (262278872262).

The spelling of 212232640050 in words is "two hundred twelve billion, two hundred thirty-two million, six hundred forty thousand, fifty".