1220455411 has 8 divisors (see below), whose sum is σ = 1396164704. Its totient is φ = 1045085760.

The previous prime is 1220455409. The next prime is 1220455427. The reversal of 1220455411 is 1145540221.

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 1220455411 - 2¹ = 1220455409 is a prime.

It is a super-2 number, since 2×1220455411² = 2979022820478357842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220455711) by changing a digit.

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, 77160 + ... + 91621.

It is an arithmetic number, because the mean of its divisors is an integer number (174520588).

Almost surely, 2^1220455411 is an apocalyptic number.

1220455411 is a deficient number, since it is larger than the sum of its proper divisors (175709293).

1220455411 is a wasteful number, since it uses less digits than its factorization.

1220455411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169821.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1220455411 is about 34935.0169743769. The cubic root of 1220455411 is about 1068.6626699455.

Adding to 1220455411 its reverse (1145540221), we get a palindrome (2365995632).

The spelling of 1220455411 in words is "one billion, two hundred twenty million, four hundred fifty-five thousand, four hundred eleven".