2301221320 has 32 divisors (see below), whose sum is σ = 5482323000. Its totient is φ = 866341888.

The previous prime is 2301221317. The next prime is 2301221339. The reversal of 2301221320 is 231221032.

It can be written as a sum of positive squares in 4 ways, for example, as 2045029284 + 256192036 = 45222^2 + 16006^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2301221294 and 2301221303.

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, 1691395 + ... + 1692754.

Almost surely, 2^2301221320 is an apocalyptic number.

2301221320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2301221320 is an abundant number, since it is smaller than the sum of its proper divisors (3181101680).

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

2301221320 is a wasteful number, since it uses less digits than its factorization.

2301221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384177 (or 3384173 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2301221320 is about 47971.0466844325. The cubic root of 2301221320 is about 1320.2397253619.

Adding to 2301221320 its reverse (231221032), we get a palindrome (2532442352).

The spelling of 2301221320 in words is "two billion, three hundred one million, two hundred twenty-one thousand, three hundred twenty".