212032321181 has 2 divisors, whose sum is σ = 212032321182. Its totient is φ = 212032321180.

The previous prime is 212032321139. The next prime is 212032321217. The reversal of 212032321181 is 181123230212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131428000900 + 80604320281 = 362530^2 + 283909^2 .

It is a cyclic number.

It is not a de Polignac number, because 212032321181 - 2⁶ = 212032321117 is a prime.

It is a super-2 number, since 2×212032321181² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212032321181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212032324181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106016160590 + 106016160591.

It is an arithmetic number, because the mean of its divisors is an integer number (106016160591).

Almost surely, 2^212032321181 is an apocalyptic number.

It is an amenable number.

212032321181 is a deficient number, since it is larger than the sum of its proper divisors (1).

212032321181 is an equidigital number, since it uses as much as digits as its factorization.

212032321181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 212032321181 its reverse (181123230212), we get a palindrome (393155551393).

The spelling of 212032321181 in words is "two hundred twelve billion, thirty-two million, three hundred twenty-one thousand, one hundred eighty-one".