205222860388 has 72 divisors (see below), whose sum is σ = 470591275392. Its totient is φ = 76411325952.

The previous prime is 205222860343. The next prime is 205222860413. The reversal of 205222860388 is 883068222502.

205222860388 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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1195120 + ... + 1356007.

It is an arithmetic number, because the mean of its divisors is an integer number (6535989936).

Almost surely, 2^205222860388 is an apocalyptic number.

205222860388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

205222860388 is an abundant number, since it is smaller than the sum of its proper divisors (265368415004).

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

205222860388 is a wasteful number, since it uses less digits than its factorization.

205222860388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551181 (or 2551166 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 46.

The spelling of 205222860388 in words is "two hundred five billion, two hundred twenty-two million, eight hundred sixty thousand, three hundred eighty-eight".