1332002220 has 192 divisors, whose sum is σ = 4210375680. Its totient is φ = 312947712.

The previous prime is 1332002179. The next prime is 1332002249. The reversal of 1332002220 is 222002331.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1332002220.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 969454 + ... + 970826.

It is an arithmetic number, because the mean of its divisors is an integer number (21929040).

Almost surely, 2^1332002220 is an apocalyptic number.

1332002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1332002220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2105187840).

1332002220 is an abundant number, since it is smaller than the sum of its proper divisors (2878373460).

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

1332002220 is a wasteful number, since it uses less digits than its factorization.

1332002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464 (or 1462 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1332002220 is about 36496.6055955893. The cubic root of 1332002220 is about 1100.2760243950.

Adding to 1332002220 its reverse (222002331), we get a palindrome (1554004551).

The spelling of 1332002220 in words is "one billion, three hundred thirty-two million, two thousand, two hundred twenty".