1310322010221 has 24 divisors (see below), whose sum is σ = 2243185008064. Its totient is φ = 748755433440.

The previous prime is 1310322010201. The next prime is 1310322010279. The reversal of 1310322010221 is 1220102230131.

1310322010221 is a `hidden beast` number, since 1 + 310 + 322 + 0 + 10 + 2 + 21 = 666.

It is not a de Polignac number, because 1310322010221 - 2²⁶ = 1310254901357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1310322010194 and 1310322010203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310322010201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 385160560 + ... + 385163961.

Almost surely, 2^{1310322010221} is an apocalyptic number.

It is an amenable number.

1310322010221 is a deficient number, since it is larger than the sum of its proper divisors (932862997843).

1310322010221 is an frugal number, since it uses more digits than its factorization.

1310322010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770324543 (or 770324531 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1310322010221 its reverse (1220102230131), we get a palindrome (2530424240352).

The spelling of 1310322010221 in words is "one trillion, three hundred ten billion, three hundred twenty-two million, ten thousand, two hundred twenty-one".