1004211220 has 24 divisors (see below), whose sum is σ = 2138548608. Its totient is φ = 396026400.

The previous prime is 1004211203. The next prime is 1004211251. The reversal of 1004211220 is 221124001.

It is a happy number.

1004211220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1004211220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352176 + ... + 355015.

It is an arithmetic number, because the mean of its divisors is an integer number (89106192).

Almost surely, 2^1004211220 is an apocalyptic number.

1004211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004211220 is an abundant number, since it is smaller than the sum of its proper divisors (1134337388).

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

1004211220 is a wasteful number, since it uses less digits than its factorization.

1004211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707271 (or 707269 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1004211220 is about 31689.2918822747. The cubic root of 1004211220 is about 1001.4017741112.

Adding to 1004211220 its reverse (221124001), we get a palindrome (1225335221).

The spelling of 1004211220 in words is "one billion, four million, two hundred eleven thousand, two hundred twenty".