1222263643285 has 8 divisors (see below), whose sum is σ = 1474315939800. Its totient is φ = 972744536064.

The previous prime is 1222263643247. The next prime is 1222263643301. The reversal of 1222263643285 is 5823463622221.

It can be written as a sum of positive squares in 4 ways, for example, as 202434305329 + 1019829337956 = 449927^2 + 1009866^2 .

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 1222263643285 - 2¹⁵ = 1222263610517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633296260 + ... + 633298189.

It is an arithmetic number, because the mean of its divisors is an integer number (184289492475).

Almost surely, 2^{1222263643285} is an apocalyptic number.

It is an amenable number.

1222263643285 is a deficient number, since it is larger than the sum of its proper divisors (252052296515).

1222263643285 is a wasteful number, since it uses less digits than its factorization.

1222263643285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266594647.

The product of its digits is 1658880, while the sum is 46.

The spelling of 1222263643285 in words is "one trillion, two hundred twenty-two billion, two hundred sixty-three million, six hundred forty-three thousand, two hundred eighty-five".