211550041245 has 32 divisors (see below), whose sum is σ = 341085127680. Its totient is φ = 111958986240.

The previous prime is 211550041237. The next prime is 211550041253. The reversal of 211550041245 is 542140055112.

211550041245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (211550041237) and next prime (211550041253).

It is not a de Polignac number, because 211550041245 - 2³ = 211550041237 is a prime.

It is a super-2 number, since 2×211550041245² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5568615 + ... + 5606475.

It is an arithmetic number, because the mean of its divisors is an integer number (10658910240).

Almost surely, 2^211550041245 is an apocalyptic number.

It is an amenable number.

211550041245 is a deficient number, since it is larger than the sum of its proper divisors (129535086435).

211550041245 is a wasteful number, since it uses less digits than its factorization.

211550041245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40725.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 211550041245 its reverse (542140055112), we get a palindrome (753690096357).

The spelling of 211550041245 in words is "two hundred eleven billion, five hundred fifty million, forty-one thousand, two hundred forty-five".