1255430222 has 8 divisors (see below), whose sum is σ = 1884386376. Its totient is φ = 627301432.

The previous prime is 1255430201. The next prime is 1255430227. The reversal of 1255430222 is 2220345521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1255430222² = 3152210084621938568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1255430191 and 1255430200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255430227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203033 + ... + 209124.

It is an arithmetic number, because the mean of its divisors is an integer number (235548297).

Almost surely, 2^1255430222 is an apocalyptic number.

1255430222 is a deficient number, since it is larger than the sum of its proper divisors (628956154).

1255430222 is a wasteful number, since it uses less digits than its factorization.

1255430222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413682.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1255430222 is about 35432.0507732759. The cubic root of 1255430222 is about 1078.7749661479.

Adding to 1255430222 its reverse (2220345521), we get a palindrome (3475775743).

The spelling of 1255430222 in words is "one billion, two hundred fifty-five million, four hundred thirty thousand, two hundred twenty-two".