1222666444 has 12 divisors (see below), whose sum is σ = 2160440464. Its totient is φ = 605397744.

The previous prime is 1222666433. The next prime is 1222666457. The reversal of 1222666444 is 4446662221.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1483407 + ... + 1484230.

Almost surely, 2^1222666444 is an apocalyptic number.

It is an amenable number.

1222666444 is a deficient number, since it is larger than the sum of its proper divisors (937774020).

1222666444 is a wasteful number, since it uses less digits than its factorization.

1222666444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967744 (or 2967742 counting only the distinct ones).

The product of its digits is 110592, while the sum is 37.

The square root of 1222666444 is about 34966.6475945293. The cubic root of 1222666444 is about 1069.3076267271.

The spelling of 1222666444 in words is "one billion, two hundred twenty-two million, six hundred sixty-six thousand, four hundred forty-four".