125016220 has 24 divisors (see below), whose sum is σ = 300039264. Its totient is φ = 42862656.

The previous prime is 125016217. The next prime is 125016239. The reversal of 125016220 is 22610521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446347 + ... + 446626.

It is an arithmetic number, because the mean of its divisors is an integer number (12501636).

Almost surely, 2^125016220 is an apocalyptic number.

125016220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125016220 is an abundant number, since it is smaller than the sum of its proper divisors (175023044).

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

125016220 is a wasteful number, since it uses less digits than its factorization.

125016220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892989 (or 892987 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 125016220 is about 11181.0652444210. The cubic root of 125016220 is about 500.0216257313.

Adding to 125016220 its reverse (22610521), we get a palindrome (147626741).

It can be divided in two parts, 12501 and 6220, that added together give a triangular number (18721 = T₁₉₃).

The spelling of 125016220 in words is "one hundred twenty-five million, sixteen thousand, two hundred twenty".