204020022004002 has 24 divisors (see below), whose sum is σ = 450383822161884. Its totient is φ = 66723529208544.

The previous prime is 204020022003983. The next prime is 204020022004027. The reversal of 204020022004002 is 200400220020402.

204020022004002 is a `hidden beast` number, since 2 + 0 + 40 + 2 + 0 + 0 + 220 + 0 + 400 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 203966983453401 + 53038550601 = 14281701^2 + 230301^2 .

It is a super-2 number, since 2×204020022004002² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106928731753 + ... + 106928733660.

Almost surely, 2^{204020022004002} is an apocalyptic number.

204020022004002 is an abundant number, since it is smaller than the sum of its proper divisors (246363800157882).

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

204020022004002 is a wasteful number, since it uses less digits than its factorization.

204020022004002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213857465474 (or 213857465471 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 204020022004002 its reverse (200400220020402), we get a palindrome (404420242024404).

The spelling of 204020022004002 in words is "two hundred four trillion, twenty billion, twenty-two million, four thousand, two".