204220242042 has 16 divisors (see below), whose sum is σ = 416146908960. Its totient is φ = 66789009872.

The previous prime is 204220242007. The next prime is 204220242043. The reversal of 204220242042 is 240242022402.

It is not an unprimeable number, because it can be changed into a prime (204220242043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321100692 + ... + 321101327.

It is an arithmetic number, because the mean of its divisors is an integer number (26009181810).

Almost surely, 2^204220242042 is an apocalyptic number.

204220242042 is an abundant number, since it is smaller than the sum of its proper divisors (211926666918).

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

204220242042 is a wasteful number, since it uses less digits than its factorization.

204220242042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642202077.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 204220242042 its reverse (240242022402), we get a palindrome (444462264444).

The spelling of 204220242042 in words is "two hundred four billion, two hundred twenty million, two hundred forty-two thousand, forty-two".