1210220404 has 12 divisors (see below), whose sum is σ = 2118412800. Its totient is φ = 604959608.

The previous prime is 1210220399. The next prime is 1210220413. The reversal of 1210220404 is 4040220121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18484 + ... + 52555.

It is an arithmetic number, because the mean of its divisors is an integer number (176534400).

Almost surely, 2^1210220404 is an apocalyptic number.

It is an amenable number.

1210220404 is a deficient number, since it is larger than the sum of its proper divisors (908192396).

1210220404 is a wasteful number, since it uses less digits than its factorization.

1210220404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75302 (or 75300 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1210220404 is about 34788.2222023489. Note that the first 4 decimals coincide. The cubic root of 1210220404 is about 1065.6669333883. Note that the first 3 decimals are identical.

Adding to 1210220404 its reverse (4040220121), we get a palindrome (5250440525).

The spelling of 1210220404 in words is "one billion, two hundred ten million, two hundred twenty thousand, four hundred four".