204220113 has 8 divisors (see below), whose sum is σ = 286624800. Its totient is φ = 128981088.

The previous prime is 204220103. The next prime is 204220127. The reversal of 204220113 is 311022402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204220113 - 2⁴ = 204220097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204220092 and 204220101.

It is not an unprimeable number, because it can be changed into a prime (204220103) 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, 1791348 + ... + 1791461.

It is an arithmetic number, because the mean of its divisors is an integer number (35828100).

Almost surely, 2^204220113 is an apocalyptic number.

It is an amenable number.

204220113 is a deficient number, since it is larger than the sum of its proper divisors (82404687).

204220113 is a wasteful number, since it uses less digits than its factorization.

204220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3582831.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 204220113 is about 14290.5602759304. The cubic root of 204220113 is about 588.8881800250. Note that the first 3 decimals are identical.

Adding to 204220113 its reverse (311022402), we get a palindrome (515242515).

It can be divided in two parts, 2042 and 20113, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 204220113 in words is "two hundred four million, two hundred twenty thousand, one hundred thirteen".