205122124 has 24 divisors (see below), whose sum is σ = 365008896. Its totient is φ = 100842000.

The previous prime is 205122107. The next prime is 205122143. The reversal of 205122124 is 421221502.

205122124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138709 + ... + 140179.

It is an arithmetic number, because the mean of its divisors is an integer number (15208704).

Almost surely, 2^205122124 is an apocalyptic number.

It is an amenable number.

205122124 is a deficient number, since it is larger than the sum of its proper divisors (159886772).

205122124 is a wasteful number, since it uses less digits than its factorization.

205122124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037 (or 2035 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 205122124 is about 14322.0851833802. The cubic root of 205122124 is about 589.7539182518.

Adding to 205122124 its reverse (421221502), we get a palindrome (626343626).

The spelling of 205122124 in words is "two hundred five million, one hundred twenty-two thousand, one hundred twenty-four".