204122230442 has 16 divisors (see below), whose sum is σ = 349132141512. Its totient is φ = 88668480000.

The previous prime is 204122230397. The next prime is 204122230451. The reversal of 204122230442 is 244032221402.

It can be written as a sum of positive squares in 4 ways, for example, as 131260565401 + 72861665041 = 362299^2 + 269929^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 230907059 + ... + 230907942.

Almost surely, 2^204122230442 is an apocalyptic number.

204122230442 is a deficient number, since it is larger than the sum of its proper divisors (145009911070).

204122230442 is a wasteful number, since it uses less digits than its factorization.

204122230442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461815033.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 204122230442 its reverse (244032221402), we get a palindrome (448154451844).

The spelling of 204122230442 in words is "two hundred four billion, one hundred twenty-two million, two hundred thirty thousand, four hundred forty-two".