1021220332 has 48 divisors (see below), whose sum is σ = 2042272512. Its totient is φ = 442284480.

The previous prime is 1021220329. The next prime is 1021220363. The reversal of 1021220332 is 2330221201.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 278503 + ... + 282145.

It is an arithmetic number, because the mean of its divisors is an integer number (42547344).

Almost surely, 2^1021220332 is an apocalyptic number.

It is an amenable number.

1021220332 is a deficient number, since it is larger than the sum of its proper divisors (1021052180).

1021220332 is a wasteful number, since it uses less digits than its factorization.

1021220332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3958 (or 3956 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1021220332 is about 31956.5381729624. The cubic root of 1021220332 is about 1007.0239920231.

Adding to 1021220332 its reverse (2330221201), we get a palindrome (3351441533).

The spelling of 1021220332 in words is "one billion, twenty-one million, two hundred twenty thousand, three hundred thirty-two".