1301322220 has 48 divisors (see below), whose sum is σ = 3084026400. Its totient is φ = 456888320.

The previous prime is 1301322203. The next prime is 1301322241. The reversal of 1301322220 is 222231031.

It is a junction number, because it is equal to n+sod(n) for n = 1301322194 and 1301322203.

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, 95605 + ... + 108364.

It is an arithmetic number, because the mean of its divisors is an integer number (64250550).

Almost surely, 2^1301322220 is an apocalyptic number.

1301322220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301322220 is an abundant number, since it is smaller than the sum of its proper divisors (1782704180).

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

1301322220 is a wasteful number, since it uses less digits than its factorization.

1301322220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204018 (or 204016 counting only the distinct ones).

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

The square root of 1301322220 is about 36073.8439870220. The cubic root of 1301322220 is about 1091.7627734539.

Adding to 1301322220 its reverse (222231031), we get a palindrome (1523553251).

The spelling of 1301322220 in words is "one billion, three hundred one million, three hundred twenty-two thousand, two hundred twenty".