125222311 has 4 divisors (see below), whose sum is σ = 125668224. Its totient is φ = 124776400.

The previous prime is 125222287. The next prime is 125222341. The reversal of 125222311 is 113222521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113222521 = 307 ⋅368803.

It is a cyclic number.

It is not a de Polignac number, because 125222311 - 2²⁵ = 91667879 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 (125222341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222535 + ... + 223096.

It is an arithmetic number, because the mean of its divisors is an integer number (31417056).

Almost surely, 2^125222311 is an apocalyptic number.

125222311 is a deficient number, since it is larger than the sum of its proper divisors (445913).

125222311 is an equidigital number, since it uses as much as digits as its factorization.

125222311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445912.

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

The square root of 125222311 is about 11190.2775211341. The cubic root of 125222311 is about 500.2962391168.

Adding to 125222311 its reverse (113222521), we get a palindrome (238444832).

The spelling of 125222311 in words is "one hundred twenty-five million, two hundred twenty-two thousand, three hundred eleven".