22132211322181 has 2 divisors, whose sum is σ = 22132211322182. Its totient is φ = 22132211322180.

The previous prime is 22132211322121. The next prime is 22132211322197. The reversal of 22132211322181 is 18122311223122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19961156419681 + 2171054902500 = 4467791^2 + 1473450^2 .

It is a cyclic number.

It is not a de Polignac number, because 22132211322181 - 2²¹ = 22132209225029 is a prime.

It is a super-2 number, since 2×22132211322181² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22132211322121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11066105661090 + 11066105661091.

It is an arithmetic number, because the mean of its divisors is an integer number (11066105661091).

Almost surely, 2^{22132211322181} is an apocalyptic number.

It is an amenable number.

22132211322181 is a deficient number, since it is larger than the sum of its proper divisors (1).

22132211322181 is an equidigital number, since it uses as much as digits as its factorization.

22132211322181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 31.

The spelling of 22132211322181 in words is "twenty-two trillion, one hundred thirty-two billion, two hundred eleven million, three hundred twenty-two thousand, one hundred eighty-one".