1002301220 has 12 divisors (see below), whose sum is σ = 2104832604. Its totient is φ = 400920480.

The previous prime is 1002301189. The next prime is 1002301229. The reversal of 1002301220 is 221032001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 664917796 + 337383424 = 25786^2 + 18368^2 .

It is a super-2 number, since 2×1002301220² = 2009215471226976800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1002301229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25057511 + ... + 25057550.

It is an arithmetic number, because the mean of its divisors is an integer number (175402717).

Almost surely, 2^1002301220 is an apocalyptic number.

1002301220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002301220 is an abundant number, since it is smaller than the sum of its proper divisors (1102531384).

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

1002301220 is a wasteful number, since it uses less digits than its factorization.

1002301220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50115070 (or 50115068 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1002301220 is about 31659.1411759700. The cubic root of 1002301220 is about 1000.7664856829.

Adding to 1002301220 its reverse (221032001), we get a palindrome (1223333221).

The spelling of 1002301220 in words is "one billion, two million, three hundred one thousand, two hundred twenty".