1001032220 has 48 divisors (see below), whose sum is σ = 2247110208. Its totient is φ = 373655040.

The previous prime is 1001032171. The next prime is 1001032223. The reversal of 1001032220 is 222301001.

It is a happy number.

1001032220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001032223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7679 + ... + 45398.

It is an arithmetic number, because the mean of its divisors is an integer number (46814796).

Almost surely, 2^1001032220 is an apocalyptic number.

1001032220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001032220 is an abundant number, since it is smaller than the sum of its proper divisors (1246077988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001032220 is a wasteful number, since it uses less digits than its factorization.

1001032220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53150 (or 53148 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1001032220 is about 31639.0932234159. The cubic root of 1001032220 is about 1000.3439550147.

Adding to 1001032220 its reverse (222301001), we get a palindrome (1223333221).

The spelling of 1001032220 in words is "one billion, one million, thirty-two thousand, two hundred twenty".