1222405255 has 8 divisors (see below), whose sum is σ = 1467762912. Its totient is φ = 977339808.

The previous prime is 1222405253. The next prime is 1222405267. The reversal of 1222405255 is 5525042221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222405255 - 2¹ = 1222405253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222405253) 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, 63739 + ... + 80668.

It is an arithmetic number, because the mean of its divisors is an integer number (183470364).

Almost surely, 2^1222405255 is an apocalyptic number.

1222405255 is a deficient number, since it is larger than the sum of its proper divisors (245357657).

1222405255 is a wasteful number, since it uses less digits than its factorization.

1222405255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146105.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 1222405255 is about 34962.9125646019. The cubic root of 1222405255 is about 1069.2314785999.

Adding to 1222405255 its reverse (5525042221), we get a palindrome (6747447476).

The spelling of 1222405255 in words is "one billion, two hundred twenty-two million, four hundred five thousand, two hundred fifty-five".