205022021342 has 8 divisors (see below), whose sum is σ = 310703475936. Its totient is φ = 101454196032.

The previous prime is 205022021341. The next prime is 205022021353. The reversal of 205022021342 is 243120220502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205022021341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528407078 + ... + 528407465.

It is an arithmetic number, because the mean of its divisors is an integer number (38837934492).

Almost surely, 2^205022021342 is an apocalyptic number.

205022021342 is a deficient number, since it is larger than the sum of its proper divisors (105681454594).

205022021342 is a wasteful number, since it uses less digits than its factorization.

205022021342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056814642.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 205022021342 its reverse (243120220502), we get a palindrome (448142241844).

The spelling of 205022021342 in words is "two hundred five billion, twenty-two million, twenty-one thousand, three hundred forty-two".