132131223221 has 2 divisors, whose sum is σ = 132131223222. Its totient is φ = 132131223220.

The previous prime is 132131223173. The next prime is 132131223253. The reversal of 132131223221 is 122322131231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129981880900 + 2149342321 = 360530^2 + 46361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132131223221 is a prime.

It is a super-2 number, since 2×132131223221² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132131223821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66065611610 + 66065611611.

It is an arithmetic number, because the mean of its divisors is an integer number (66065611611).

Almost surely, 2^132131223221 is an apocalyptic number.

It is an amenable number.

132131223221 is a deficient number, since it is larger than the sum of its proper divisors (1).

132131223221 is an equidigital number, since it uses as much as digits as its factorization.

132131223221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

Adding to 132131223221 its reverse (122322131231), we get a palindrome (254453354452).

The spelling of 132131223221 in words is "one hundred thirty-two billion, one hundred thirty-one million, two hundred twenty-three thousand, two hundred twenty-one".