1256485222 has 8 divisors (see below), whose sum is σ = 1885507272. Its totient is φ = 627982800.

The previous prime is 1256485213. The next prime is 1256485229. The reversal of 1256485222 is 2225846521.

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

It is a super-2 number, since 2×1256485222² = 3157510226208778568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256485229) 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, 123804 + ... + 133567.

It is an arithmetic number, because the mean of its divisors is an integer number (235688409).

Almost surely, 2^1256485222 is an apocalyptic number.

1256485222 is a deficient number, since it is larger than the sum of its proper divisors (629022050).

1256485222 is a wasteful number, since it uses less digits than its factorization.

1256485222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259814.

The product of its digits is 76800, while the sum is 37.

The square root of 1256485222 is about 35446.9352977094. The cubic root of 1256485222 is about 1079.0770641632.

The spelling of 1256485222 in words is "one billion, two hundred fifty-six million, four hundred eighty-five thousand, two hundred twenty-two".