130311210131221 has 16 divisors (see below), whose sum is σ = 148996474099200. Its totient is φ = 111643294050288.

The previous prime is 130311210131171. The next prime is 130311210131227. The reversal of 130311210131221 is 122131012113031.

It is not a de Polignac number, because 130311210131221 - 2⁹ = 130311210130709 is a prime.

It is a super-2 number, since 2×130311210131221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130311210131192 and 130311210131201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130311210131227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472108470 + ... + 472384408.

It is an arithmetic number, because the mean of its divisors is an integer number (9312279631200).

Almost surely, 2^{130311210131221} is an apocalyptic number.

It is an amenable number.

130311210131221 is a deficient number, since it is larger than the sum of its proper divisors (18685263967979).

130311210131221 is a wasteful number, since it uses less digits than its factorization.

130311210131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307128.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 130311210131221 its reverse (122131012113031), we get a palindrome (252442222244252).

The spelling of 130311210131221 in words is "one hundred thirty trillion, three hundred eleven billion, two hundred ten million, one hundred thirty-one thousand, two hundred twenty-one".