221000322131 has 8 divisors (see below), whose sum is σ = 221192797584. Its totient is φ = 220807905120.

The previous prime is 221000322091. The next prime is 221000322149. The reversal of 221000322131 is 131223000122.

221000322131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221000322131 - 2²² = 220996127827 is a prime.

It is a super-2 number, since 2×221000322131² (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 (221003322131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10897541 + ... + 10917801.

It is an arithmetic number, because the mean of its divisors is an integer number (27649099698).

Almost surely, 2^221000322131 is an apocalyptic number.

221000322131 is a deficient number, since it is larger than the sum of its proper divisors (192475453).

221000322131 is a wasteful number, since it uses less digits than its factorization.

221000322131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29221.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 221000322131 its reverse (131223000122), we get a palindrome (352223322253).

The spelling of 221000322131 in words is "two hundred twenty-one billion, three hundred twenty-two thousand, one hundred thirty-one".