125000220 has 48 divisors (see below), whose sum is σ = 350773920. Its totient is φ = 33259776.

The previous prime is 125000209. The next prime is 125000263. The reversal of 125000220 is 22000521.

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

It is a junction number, because it is equal to n+sod(n) for n = 125000196 and 125000205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28494 + ... + 32586.

It is an arithmetic number, because the mean of its divisors is an integer number (7307790).

Almost surely, 2^125000220 is an apocalyptic number.

125000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125000220 is an abundant number, since it is smaller than the sum of its proper divisors (225773700).

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

125000220 is a wasteful number, since it uses less digits than its factorization.

125000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4614 (or 4612 counting only the distinct ones).

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

The square root of 125000220 is about 11180.3497261937. The cubic root of 125000220 is about 500.0002933332. Note that the first 3 decimals are identical.

Adding to 125000220 its reverse (22000521), we get a palindrome (147000741).

The spelling of 125000220 in words is "one hundred twenty-five million, two hundred twenty", and thus it is an aban number.