220100325 has 12 divisors (see below), whose sum is σ = 363899328. Its totient is φ = 117386800.

The previous prime is 220100323. The next prime is 220100357. The reversal of 220100325 is 523001022.

It is not a de Polignac number, because 220100325 - 2¹ = 220100323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220100323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1467261 + ... + 1467410.

It is an arithmetic number, because the mean of its divisors is an integer number (30324944).

Almost surely, 2^220100325 is an apocalyptic number.

220100325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220100325 is a deficient number, since it is larger than the sum of its proper divisors (143799003).

220100325 is a wasteful number, since it uses less digits than its factorization.

220100325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2934684 (or 2934679 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 220100325 is about 14835.7785437772. The cubic root of 220100325 is about 603.7728238310.

Adding to 220100325 its reverse (523001022), we get a palindrome (743101347).

The spelling of 220100325 in words is "two hundred twenty million, one hundred thousand, three hundred twenty-five".