125501222 has 16 divisors (see below), whose sum is σ = 234703872. Its totient is φ = 48896520.

The previous prime is 125501209. The next prime is 125501227. The reversal of 125501222 is 222105521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 125501194 and 125501203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125501227) 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 7 ways as a sum of consecutive naturals, for example, 407318 + ... + 407625.

It is an arithmetic number, because the mean of its divisors is an integer number (14668992).

Almost surely, 2^125501222 is an apocalyptic number.

125501222 is a deficient number, since it is larger than the sum of its proper divisors (109202650).

125501222 is a wasteful number, since it uses less digits than its factorization.

125501222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814963.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 125501222 is about 11202.7327916004. The cubic root of 125501222 is about 500.6674047454.

Adding to 125501222 its reverse (222105521), we get a palindrome (347606743).

The spelling of 125501222 in words is "one hundred twenty-five million, five hundred one thousand, two hundred twenty-two".