2210211120181 has 2 divisors, whose sum is σ = 2210211120182. Its totient is φ = 2210211120180.

The previous prime is 2210211120149. The next prime is 2210211120223. The reversal of 2210211120181 is 1810211120122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1294113283281 + 916097836900 = 1137591^2 + 957130^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210211120181 - 2⁵ = 2210211120149 is a prime.

It is a super-2 number, since 2×2210211120181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2210211124181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105105560090 + 1105105560091.

It is an arithmetic number, because the mean of its divisors is an integer number (1105105560091).

Almost surely, 2^{2210211120181} is an apocalyptic number.

It is an amenable number.

2210211120181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210211120181 is an equidigital number, since it uses as much as digits as its factorization.

2210211120181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 22.

The spelling of 2210211120181 in words is "two trillion, two hundred ten billion, two hundred eleven million, one hundred twenty thousand, one hundred eighty-one".