131201210221 has 8 divisors (see below), whose sum is σ = 132464102400. Its totient is φ = 129944318160.

The previous prime is 131201210219. The next prime is 131201210297. The reversal of 131201210221 is 122012102131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131201210221 - 2¹ = 131201210219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131201210195 and 131201210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201210521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1456081 + ... + 1543558.

It is an arithmetic number, because the mean of its divisors is an integer number (16558012800).

Almost surely, 2^131201210221 is an apocalyptic number.

It is an amenable number.

131201210221 is a deficient number, since it is larger than the sum of its proper divisors (1262892179).

131201210221 is a wasteful number, since it uses less digits than its factorization.

131201210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000059.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 131201210221 its reverse (122012102131), we get a palindrome (253213312352).

The spelling of 131201210221 in words is "one hundred thirty-one billion, two hundred one million, two hundred ten thousand, two hundred twenty-one".