125222211 has 12 divisors (see below), whose sum is σ = 180975288. Its totient is φ = 83435904.

The previous prime is 125222191. The next prime is 125222213. The reversal of 125222211 is 112222521.

It is not a de Polignac number, because 125222211 - 2¹¹ = 125220163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125222213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25491 + ... + 30003.

It is an arithmetic number, because the mean of its divisors is an integer number (15081274).

Almost surely, 2^125222211 is an apocalyptic number.

125222211 is a deficient number, since it is larger than the sum of its proper divisors (55753077).

125222211 is a wasteful number, since it uses less digits than its factorization.

125222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7602 (or 7599 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 125222211 is about 11190.2730529688. The cubic root of 125222211 is about 500.2961059413.

Adding to 125222211 its reverse (112222521), we get a palindrome (237444732).

The spelling of 125222211 in words is "one hundred twenty-five million, two hundred twenty-two thousand, two hundred eleven".