1332001220 has 24 divisors (see below), whose sum is σ = 3051494208. Its totient is φ = 484364000.

The previous prime is 1332001219. The next prime is 1332001241. The reversal of 1332001220 is 221002331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1332001195 and 1332001204.

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, 3027056 + ... + 3027495.

It is an arithmetic number, because the mean of its divisors is an integer number (127145592).

Almost surely, 2^1332001220 is an apocalyptic number.

1332001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1332001220 is an abundant number, since it is smaller than the sum of its proper divisors (1719492988).

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

1332001220 is a wasteful number, since it uses less digits than its factorization.

1332001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6054571 (or 6054569 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1332001220 is about 36496.5918956825. The cubic root of 1332001220 is about 1100.2757490510.

Adding to 1332001220 its reverse (221002331), we get a palindrome (1553003551).

The spelling of 1332001220 in words is "one billion, three hundred thirty-two million, one thousand, two hundred twenty".