205112400112 has 20 divisors (see below), whose sum is σ = 399422567016. Its totient is φ = 102035608640.

The previous prime is 205112400109. The next prime is 205112400121. The reversal of 205112400112 is 211004211502.

It is a super-2 number, since 2×205112400112² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 205112400112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32533714 + ... + 32540017.

Almost surely, 2^205112400112 is an apocalyptic number.

It is an amenable number.

205112400112 is a deficient number, since it is larger than the sum of its proper divisors (194310166904).

205112400112 is a wasteful number, since it uses less digits than its factorization.

205112400112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65073936 (or 65073930 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 205112400112 its reverse (211004211502), we get a palindrome (416116611614).

The spelling of 205112400112 in words is "two hundred five billion, one hundred twelve million, four hundred thousand, one hundred twelve".