1331110220 has 24 divisors (see below), whose sum is σ = 3049453008. Its totient is φ = 484040000.

The previous prime is 1331110177. The next prime is 1331110273. The reversal of 1331110220 is 220111331.

It is a junction number, because it is equal to n+sod(n) for n = 1331110195 and 1331110204.

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, 3025031 + ... + 3025470.

It is an arithmetic number, because the mean of its divisors is an integer number (127060542).

Almost surely, 2^1331110220 is an apocalyptic number.

1331110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331110220 is an abundant number, since it is smaller than the sum of its proper divisors (1718342788).

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

1331110220 is a wasteful number, since it uses less digits than its factorization.

1331110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050521 (or 6050519 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1331110220 is about 36484.3832344744. The cubic root of 1331110220 is about 1100.0303627983.

Adding to 1331110220 its reverse (220111331), we get a palindrome (1551221551).

The spelling of 1331110220 in words is "one billion, three hundred thirty-one million, one hundred ten thousand, two hundred twenty".