1310012230221 has 48 divisors (see below), whose sum is σ = 1959244305408. Its totient is φ = 842996736000.

The previous prime is 1310012230213. The next prime is 1310012230273. The reversal of 1310012230221 is 1220322100131.

It is not a de Polignac number, because 1310012230221 - 2³ = 1310012230213 is a prime.

It is a super-2 number, since 2×1310012230221² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1310012230194 and 1310012230203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310012230421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10920156 + ... + 11039466.

It is an arithmetic number, because the mean of its divisors is an integer number (40817589696).

Almost surely, 2^{1310012230221} is an apocalyptic number.

It is an amenable number.

1310012230221 is a deficient number, since it is larger than the sum of its proper divisors (649232075187).

1310012230221 is a wasteful number, since it uses less digits than its factorization.

1310012230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119722 (or 119719 counting only the distinct ones).

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

Adding to 1310012230221 its reverse (1220322100131), we get a palindrome (2530334330352).

The spelling of 1310012230221 in words is "one trillion, three hundred ten billion, twelve million, two hundred thirty thousand, two hundred twenty-one".