1011220996 has 24 divisors (see below), whose sum is σ = 1876361760. Its totient is φ = 475201152.

The previous prime is 1011220957. The next prime is 1011220997. The reversal of 1011220996 is 6990221101.

It is not an unprimeable number, because it can be changed into a prime (1011220997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40191 + ... + 60313.

It is an arithmetic number, because the mean of its divisors is an integer number (78181740).

Almost surely, 2^1011220996 is an apocalyptic number.

It is an amenable number.

1011220996 is a deficient number, since it is larger than the sum of its proper divisors (865140764).

1011220996 is a wasteful number, since it uses less digits than its factorization.

1011220996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20883 (or 20881 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 1011220996 is about 31799.7011935647. The cubic root of 1011220996 is about 1003.7264284820.

The spelling of 1011220996 in words is "one billion, eleven million, two hundred twenty thousand, nine hundred ninety-six".