220107900 has 72 divisors (see below), whose sum is σ = 640677744. Its totient is φ = 58342400.

The previous prime is 220107889. The next prime is 220107911. The reversal of 220107900 is 9701022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220107889) and next prime (220107911).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49780 + ... + 54020.

It is an arithmetic number, because the mean of its divisors is an integer number (8898302).

Almost surely, 2^220107900 is an apocalyptic number.

220107900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220107900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320338872).

220107900 is an abundant number, since it is smaller than the sum of its proper divisors (420569844).

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

220107900 is a wasteful number, since it uses less digits than its factorization.

220107900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4431 (or 4424 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 220107900 is about 14836.0338365751. The cubic root of 220107900 is about 603.7797502583.

Adding to 220107900 its reverse (9701022), we get a palindrome (229808922).

The spelling of 220107900 in words is "two hundred twenty million, one hundred seven thousand, nine hundred".