1301221210 has 8 divisors (see below), whose sum is σ = 2342198196. Its totient is φ = 520488480.

The previous prime is 1301221183. The next prime is 1301221211. The reversal of 1301221210 is 121221031.

It can be written as a sum of positive squares in 2 ways, for example, as 1280709369 + 20511841 = 35787^2 + 4529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1301221211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65061051 + ... + 65061070.

Almost surely, 2^1301221210 is an apocalyptic number.

1301221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1301221210 is a deficient number, since it is larger than the sum of its proper divisors (1040976986).

1301221210 is a wasteful number, since it uses less digits than its factorization.

1301221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130122128.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1301221210 is about 36072.4439149886. The cubic root of 1301221210 is about 1091.7345247979.

Adding to 1301221210 its reverse (121221031), we get a palindrome (1422442241).

The spelling of 1301221210 in words is "one billion, three hundred one million, two hundred twenty-one thousand, two hundred ten".