1220331032 has 16 divisors (see below), whose sum is σ = 2322272760. Its totient is φ = 601058304.

The previous prime is 1220331029. The next prime is 1220331037. The reversal of 1220331032 is 2301330221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220331032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220331037) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1137833 + ... + 1138904.

Almost surely, 2^1220331032 is an apocalyptic number.

It is an amenable number.

1220331032 is a deficient number, since it is larger than the sum of its proper divisors (1101941728).

1220331032 is a wasteful number, since it uses less digits than its factorization.

1220331032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276810 (or 2276806 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1220331032 is about 34933.2367810371. The cubic root of 1220331032 is about 1068.6263655440.

Adding to 1220331032 its reverse (2301330221), we get a palindrome (3521661253).

The spelling of 1220331032 in words is "one billion, two hundred twenty million, three hundred thirty-one thousand, thirty-two".