1002221232 has 80 divisors (see below), whose sum is σ = 2681828352. Its totient is φ = 322309120.

The previous prime is 1002221219. The next prime is 1002221243. The reversal of 1002221232 is 2321222001.

It is a happy number.

It is a super-3 number, since 3×1002221232³ (a number of 28 digits) contains 333 as substring.

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, 157048 + ... + 163304.

Almost surely, 2^1002221232 is an apocalyptic number.

1002221232 is a gapful number since it is divisible by the number (12) 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 1002221232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1340914176).

1002221232 is an abundant number, since it is smaller than the sum of its proper divisors (1679607120).

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

1002221232 is a wasteful number, since it uses less digits than its factorization.

1002221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6386 (or 6380 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1002221232 is about 31657.8778821323. The cubic root of 1002221232 is about 1000.7398631342.

Adding to 1002221232 its reverse (2321222001), we get a palindrome (3323443233).

The spelling of 1002221232 in words is "one billion, two million, two hundred twenty-one thousand, two hundred thirty-two".