125225101 has 4 divisors (see below), whose sum is σ = 125269600. Its totient is φ = 125180604.

The previous prime is 125225099. The next prime is 125225137. The reversal of 125225101 is 101522521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125225101 - 2¹ = 125225099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125225141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17721 + ... + 23758.

It is an arithmetic number, because the mean of its divisors is an integer number (31317400).

Almost surely, 2^125225101 is an apocalyptic number.

125225101 is the 5005-th centered decagonal number.

It is an amenable number.

125225101 is a deficient number, since it is larger than the sum of its proper divisors (44499).

125225101 is an equidigital number, since it uses as much as digits as its factorization.

125225101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44498.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 125225101 is about 11190.4021822274. The cubic root of 125225101 is about 500.2999546851.

Adding to 125225101 its reverse (101522521), we get a palindrome (226747622).

The spelling of 125225101 in words is "one hundred twenty-five million, two hundred twenty-five thousand, one hundred one".