1222284556 has 6 divisors (see below), whose sum is σ = 2138997980. Its totient is φ = 611142276.

The previous prime is 1222284541. The next prime is 1222284559. The reversal of 1222284556 is 6554822221.

It is a super-2 number, since 2×1222284556² = 2987959071672234272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222284559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152785566 + ... + 152785573.

Almost surely, 2^1222284556 is an apocalyptic number.

It is an amenable number.

1222284556 is a deficient number, since it is larger than the sum of its proper divisors (916713424).

1222284556 is a wasteful number, since it uses less digits than its factorization.

1222284556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305571143 (or 305571141 counting only the distinct ones).

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

The square root of 1222284556 is about 34961.1864215161. The cubic root of 1222284556 is about 1069.1962858471.

The spelling of 1222284556 in words is "one billion, two hundred twenty-two million, two hundred eighty-four thousand, five hundred fifty-six".