205051422442 has 32 divisors (see below), whose sum is σ = 314962704000. Its totient is φ = 100089950400.

The previous prime is 205051422419. The next prime is 205051422473. The reversal of 205051422442 is 244224150502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12695692 + ... + 12711832.

It is an arithmetic number, because the mean of its divisors is an integer number (9842584500).

Almost surely, 2^205051422442 is an apocalyptic number.

205051422442 is a deficient number, since it is larger than the sum of its proper divisors (109911281558).

205051422442 is a wasteful number, since it uses less digits than its factorization.

205051422442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16942.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 205051422442 its reverse (244224150502), we get a palindrome (449275572944).

The spelling of 205051422442 in words is "two hundred five billion, fifty-one million, four hundred twenty-two thousand, four hundred forty-two".