125002220 has 48 divisors (see below), whose sum is σ = 301723968. Its totient is φ = 42612480.

The previous prime is 125002219. The next prime is 125002223. The reversal of 125002220 is 22200521.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 125002195 and 125002204.

It is not an unprimeable number, because it can be changed into a prime (125002223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22874 + ... + 27806.

It is an arithmetic number, because the mean of its divisors is an integer number (6285916).

Almost surely, 2^125002220 is an apocalyptic number.

125002220 is a gapful number since it is divisible by the number (10) 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 125002220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150861984).

125002220 is an abundant number, since it is smaller than the sum of its proper divisors (176721748).

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

125002220 is a wasteful number, since it uses less digits than its factorization.

125002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130 (or 5128 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 125002220 is about 11180.4391684763. The cubic root of 125002220 is about 500.0029599825.

Adding to 125002220 its reverse (22200521), we get a palindrome (147202741).

The spelling of 125002220 in words is "one hundred twenty-five million, two thousand, two hundred twenty".