205041245211 has 32 divisors (see below), whose sum is σ = 331487466240. Its totient is φ = 124227043200.

The previous prime is 205041245209. The next prime is 205041245219. The reversal of 205041245211 is 112542140502.

It is a happy number.

205041245211 is a `hidden beast` number, since 20 + 504 + 124 + 5 + 2 + 11 = 666.

It is not a de Polignac number, because 205041245211 - 2¹ = 205041245209 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (205041245219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 816336 + ... + 1037538.

It is an arithmetic number, because the mean of its divisors is an integer number (10358983320).

Almost surely, 2^205041245211 is an apocalyptic number.

205041245211 is a deficient number, since it is larger than the sum of its proper divisors (126446221029).

205041245211 is a wasteful number, since it uses less digits than its factorization.

205041245211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224344 (or 224338 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 205041245211 its reverse (112542140502), we get a palindrome (317583385713).

The spelling of 205041245211 in words is "two hundred five billion, forty-one million, two hundred forty-five thousand, two hundred eleven".