221302230131 has 8 divisors (see below), whose sum is σ = 236108713104. Its totient is φ = 206694492160.

The previous prime is 221302230091. The next prime is 221302230169. The reversal of 221302230131 is 131032203122.

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 221302230131 - 2¹⁰ = 221302229107 is a prime.

It is a super-2 number, since 2×221302230131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221302230031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49683950 + ... + 49688403.

It is an arithmetic number, because the mean of its divisors is an integer number (29513589138).

Almost surely, 2^221302230131 is an apocalyptic number.

221302230131 is a deficient number, since it is larger than the sum of its proper divisors (14806482973).

221302230131 is a wasteful number, since it uses less digits than its factorization.

221302230131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99372501.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 221302230131 its reverse (131032203122), we get a palindrome (352334433253).

The spelling of 221302230131 in words is "two hundred twenty-one billion, three hundred two million, two hundred thirty thousand, one hundred thirty-one".