125206220 has 24 divisors (see below), whose sum is σ = 263363184. Its totient is φ = 50000576.

The previous prime is 125206189. The next prime is 125206243. The reversal of 125206220 is 22602521.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 125206192 and 125206201.

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, 8267 + ... + 17853.

It is an arithmetic number, because the mean of its divisors is an integer number (10973466).

Almost surely, 2^125206220 is an apocalyptic number.

125206220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125206220 is an abundant number, since it is smaller than the sum of its proper divisors (138156964).

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

125206220 is a wasteful number, since it uses less digits than its factorization.

125206220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10249 (or 10247 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 125206220 is about 11189.5585256971. The cubic root of 125206220 is about 500.2748089324.

Adding to 125206220 its reverse (22602521), we get a palindrome (147808741).

The spelling of 125206220 in words is "one hundred twenty-five million, two hundred six thousand, two hundred twenty".