125404222 has 4 divisors (see below), whose sum is σ = 188106336. Its totient is φ = 62702110.

The previous prime is 125404217. The next prime is 125404229. The reversal of 125404222 is 222404521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222404521 = 37 ⋅6010933.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 125404193 and 125404202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125404229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31351054 + ... + 31351057.

It is an arithmetic number, because the mean of its divisors is an integer number (47026584).

Almost surely, 2^125404222 is an apocalyptic number.

125404222 is a deficient number, since it is larger than the sum of its proper divisors (62702114).

125404222 is an equidigital number, since it uses as much as digits as its factorization.

125404222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62702113.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 125404222 is about 11198.4026539502. The cubic root of 125404222 is about 500.5383827466.

Adding to 125404222 its reverse (222404521), we get a palindrome (347808743).

The spelling of 125404222 in words is "one hundred twenty-five million, four hundred four thousand, two hundred twenty-two".