220204131 has 16 divisors (see below), whose sum is σ = 344619264. Its totient is φ = 122429664.

The previous prime is 220204121. The next prime is 220204141. The reversal of 220204131 is 131402022.

It is an interprime number because it is at equal distance from previous prime (220204121) and next prime (220204141).

It is not a de Polignac number, because 220204131 - 2⁷ = 220204003 is a prime.

It is a super-2 number, since 2×220204131² = 96979718618930322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220204131.

It is not an unprimeable number, because it can be changed into a prime (220204121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140925 + ... + 142478.

It is an arithmetic number, because the mean of its divisors is an integer number (21538704).

Almost surely, 2^220204131 is an apocalyptic number.

220204131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

220204131 is a deficient number, since it is larger than the sum of its proper divisors (124415133).

220204131 is a wasteful number, since it uses less digits than its factorization.

220204131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283450.

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

The square root of 220204131 is about 14839.2766333134. The cubic root of 220204131 is about 603.8677281148.

Adding to 220204131 its reverse (131402022), we get a palindrome (351606153).

The spelling of 220204131 in words is "two hundred twenty million, two hundred four thousand, one hundred thirty-one".