1310422221 has 12 divisors (see below), whose sum is σ = 1919492640. Its totient is φ = 861309960.

The previous prime is 1310422219. The next prime is 1310422231. The reversal of 1310422221 is 1222240131.

It is a happy number.

1310422221 is a `hidden beast` number, since 13 + 10 + 422 + 221 = 666.

It is not a de Polignac number, because 1310422221 - 2¹ = 1310422219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1310422194 and 1310422203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310422231) 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 11 ways as a sum of consecutive naturals, for example, 1024731 + ... + 1026008.

It is an arithmetic number, because the mean of its divisors is an integer number (159957720).

Almost surely, 2^1310422221 is an apocalyptic number.

It is an amenable number.

1310422221 is a deficient number, since it is larger than the sum of its proper divisors (609070419).

1310422221 is a wasteful number, since it uses less digits than its factorization.

1310422221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050816 (or 2050813 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1310422221 is about 36199.7544328687. The cubic root of 1310422221 is about 1094.3017228176.

Adding to 1310422221 its reverse (1222240131), we get a palindrome (2532662352).

The spelling of 1310422221 in words is "one billion, three hundred ten million, four hundred twenty-two thousand, two hundred twenty-one".