220125000 has 112 divisors (see below), whose sum is σ = 689053680. Its totient is φ = 58600000.

The previous prime is 220124999. The next prime is 220125007. The reversal of 220125000 is 521022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (220125007) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 374707 + ... + 375293.

It is an arithmetic number, because the mean of its divisors is an integer number (6152265).

Almost surely, 2^220125000 is an apocalyptic number.

220125000 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 220125000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344526840).

220125000 is an abundant number, since it is smaller than the sum of its proper divisors (468928680).

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

220125000 is an frugal number, since it uses more digits than its factorization.

220125000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 220125000 is about 14836.6101249578. The cubic root of 220125000 is about 603.7953855692.

Adding to 220125000 its reverse (521022), we get a palindrome (220646022).

The spelling of 220125000 in words is "two hundred twenty million, one hundred twenty-five thousand".