125110221 has 8 divisors (see below), whose sum is σ = 167813184. Its totient is φ = 82907040.

The previous prime is 125110217. The next prime is 125110243. The reversal of 125110221 is 122011521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125110221 - 2² = 125110217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125110201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124360 + ... + 125361.

It is an arithmetic number, because the mean of its divisors is an integer number (20976648).

Almost surely, 2^125110221 is an apocalyptic number.

It is an amenable number.

125110221 is a deficient number, since it is larger than the sum of its proper divisors (42702963).

125110221 is a wasteful number, since it uses less digits than its factorization.

125110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249891.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 125110221 is about 11185.2680343387. The cubic root of 125110221 is about 500.1469181592.

Adding to 125110221 its reverse (122011521), we get a palindrome (247121742).

The spelling of 125110221 in words is "one hundred twenty-five million, one hundred ten thousand, two hundred twenty-one".