204021102 has 16 divisors (see below), whose sum is σ = 408183120. Its totient is φ = 67983552.

The previous prime is 204021101. The next prime is 204021121. The reversal of 204021102 is 201120402.

204021102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×204021102² = 83249220122588808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204021101) 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, 27858 + ... + 34410.

It is an arithmetic number, because the mean of its divisors is an integer number (25511445).

Almost surely, 2^204021102 is an apocalyptic number.

204021102 is an abundant number, since it is smaller than the sum of its proper divisors (204162018).

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

204021102 is a wasteful number, since it uses less digits than its factorization.

204021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11747.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 204021102 is about 14283.5955557416. The cubic root of 204021102 is about 588.6968287862.

Adding to 204021102 its reverse (201120402), we get a palindrome (405141504).

The spelling of 204021102 in words is "two hundred four million, twenty-one thousand, one hundred two".