211011207121050 has 192 divisors, whose sum is σ = 600052125634560. Its totient is φ = 48071016241920.

The previous prime is 211011207121019. The next prime is 211011207121051. The reversal of 211011207121050 is 50121702110112.

211011207121050 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 211011207121050.

It is not an unprimeable number, because it can be changed into a prime (211011207121051) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2139177631 + ... + 2139276269.

It is an arithmetic number, because the mean of its divisors is an integer number (3125271487680).

Almost surely, 2^{211011207121050} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211011207121050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300026062817280).

211011207121050 is an abundant number, since it is smaller than the sum of its proper divisors (389040918513510).

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

211011207121050 is a wasteful number, since it uses less digits than its factorization.

211011207121050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105405 (or 105400 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 24.

Adding to 211011207121050 its reverse (50121702110112), we get a palindrome (261132909231162).

The spelling of 211011207121050 in words is "two hundred eleven trillion, eleven billion, two hundred seven million, one hundred twenty-one thousand, fifty".