1132021220 has 48 divisors (see below), whose sum is σ = 2628920448. Its totient is φ = 405999360.

The previous prime is 1132021217. The next prime is 1132021237. The reversal of 1132021220 is 221202311.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1132021195 and 1132021204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19184 + ... + 51303.

It is an arithmetic number, because the mean of its divisors is an integer number (54769176).

Almost surely, 2^1132021220 is an apocalyptic number.

1132021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1132021220 is an abundant number, since it is smaller than the sum of its proper divisors (1496899228).

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

1132021220 is a wasteful number, since it uses less digits than its factorization.

1132021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70580 (or 70578 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1132021220 is about 33645.5230305608. The cubic root of 1132021220 is about 1042.2010889986.

Adding to 1132021220 its reverse (221202311), we get a palindrome (1353223531).

The spelling of 1132021220 in words is "one billion, one hundred thirty-two million, twenty-one thousand, two hundred twenty".