204042202240402 has 4 divisors (see below), whose sum is σ = 306063303360606. Its totient is φ = 102021101120200.

The previous prime is 204042202240367. The next prime is 204042202240421.

204042202240402 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 160864805196001 + 43177397044401 = 12683249^2 + 6570951^2 .

It is a super-2 number, since 2×204042202240402² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010550560099 + ... + 51010550560102.

Almost surely, 2^{204042202240402} is an apocalyptic number.

204042202240402 is a deficient number, since it is larger than the sum of its proper divisors (102021101120204).

204042202240402 is a wasteful number, since it uses less digits than its factorization.

204042202240402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102021101120203.

The product of its (nonzero) digits is 16384, while the sum is 28.

It can be divided in two parts, 20404220 and 2240402, that added together give a palindrome (22644622).

The spelling of 204042202240402 in words is "two hundred four trillion, forty-two billion, two hundred two million, two hundred forty thousand, four hundred two".