1120421666 has 64 divisors (see below), whose sum is σ = 2113440000. Its totient is φ = 436295808.

The previous prime is 1120421657. The next prime is 1120421671. The reversal of 1120421666 is 6661240211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2245085 + ... + 2245583.

It is an arithmetic number, because the mean of its divisors is an integer number (33022500).

Almost surely, 2^1120421666 is an apocalyptic number.

1120421666 is a deficient number, since it is larger than the sum of its proper divisors (993018334).

1120421666 is an equidigital number, since it uses as much as digits as its factorization.

1120421666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1120421666 is about 33472.7003093566. The cubic root of 1120421666 is about 1038.6291312930.

Adding to 1120421666 its reverse (6661240211), we get a palindrome (7781661877).

The spelling of 1120421666 in words is "one billion, one hundred twenty million, four hundred twenty-one thousand, six hundred sixty-six".