10131121300221 has 16 divisors (see below), whose sum is σ = 15009830606400. Its totient is φ = 6753737960784.

The previous prime is 10131121300217. The next prime is 10131121300247. The reversal of 10131121300221 is 12200312113101.

10131121300221 is a `hidden beast` number, since 1 + 0 + 1 + 311 + 2 + 130 + 0 + 221 = 666.

It is not a de Polignac number, because 10131121300221 - 2² = 10131121300217 is a prime.

It is a super-2 number, since 2×10131121300221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10131121300194 and 10131121300203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10131121300271) 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, 8982951 + ... + 10047668.

It is an arithmetic number, because the mean of its divisors is an integer number (938114412900).

Almost surely, 2^{10131121300221} is an apocalyptic number.

It is an amenable number.

10131121300221 is a deficient number, since it is larger than the sum of its proper divisors (4878709306179).

10131121300221 is a wasteful number, since it uses less digits than its factorization.

10131121300221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19050345 (or 19050339 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 10131121300221 its reverse (12200312113101), we get a palindrome (22331433413322).

The spelling of 10131121300221 in words is "ten trillion, one hundred thirty-one billion, one hundred twenty-one million, three hundred thousand, two hundred twenty-one".