1011220984 has 32 divisors (see below), whose sum is σ = 1915092720. Its totient is φ = 500555776.

The previous prime is 1011220957. The next prime is 1011220997. The reversal of 1011220984 is 4890221101.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 354267 + ... + 357109.

Almost surely, 2^1011220984 is an apocalyptic number.

It is an amenable number.

1011220984 is a deficient number, since it is larger than the sum of its proper divisors (903871736).

1011220984 is a wasteful number, since it uses less digits than its factorization.

1011220984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279 (or 3275 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1011220984 is about 31799.7010048837. The cubic root of 1011220984 is about 1003.7264245117.

The spelling of 1011220984 in words is "one billion, eleven million, two hundred twenty thousand, nine hundred eighty-four".