132212168455781 has 2 divisors, whose sum is σ = 132212168455782. Its totient is φ = 132212168455780.

The previous prime is 132212168455723. The next prime is 132212168455811. The reversal of 132212168455781 is 187554861212231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108062158137025 + 24150010318756 = 10395295^2 + 4914266^2 .

It is a cyclic number.

It is not a de Polignac number, because 132212168455781 - 2¹⁰ = 132212168454757 is a prime.

It is a super-2 number, since 2×132212168455781² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132212168455181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66106084227890 + 66106084227891.

It is an arithmetic number, because the mean of its divisors is an integer number (66106084227891).

Almost surely, 2^{132212168455781} is an apocalyptic number.

It is an amenable number.

132212168455781 is a deficient number, since it is larger than the sum of its proper divisors (1).

132212168455781 is an equidigital number, since it uses as much as digits as its factorization.

132212168455781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6451200, while the sum is 56.

The spelling of 132212168455781 in words is "one hundred thirty-two trillion, two hundred twelve billion, one hundred sixty-eight million, four hundred fifty-five thousand, seven hundred eighty-one".