125521222 has 16 divisors (see below), whose sum is σ = 195417360. Its totient is φ = 60396448.

The previous prime is 125521219. The next prime is 125521223. The reversal of 125521222 is 222125521.

It is a junction number, because it is equal to n+sod(n) for n = 125521193 and 125521202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125521223) 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, 14973 + ... + 21799.

It is an arithmetic number, because the mean of its divisors is an integer number (12213585).

Almost surely, 2^125521222 is an apocalyptic number.

125521222 is a deficient number, since it is larger than the sum of its proper divisors (69896138).

125521222 is a wasteful number, since it uses less digits than its factorization.

125521222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7175.

The product of its digits is 800, while the sum is 22.

The square root of 125521222 is about 11203.6253953798. The cubic root of 125521222 is about 500.6939989519.

Adding to 125521222 its reverse (222125521), we get a palindrome (347646743).

The spelling of 125521222 in words is "one hundred twenty-five million, five hundred twenty-one thousand, two hundred twenty-two".