2212450181 has 2 divisors, whose sum is σ = 2212450182. Its totient is φ = 2212450180.

The previous prime is 2212450171. The next prime is 2212450249. The reversal of 2212450181 is 1810542122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1837408225 + 375041956 = 42865^2 + 19366^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212450181 - 2¹⁰ = 2212449157 is a prime.

It is a super-2 number, since 2×2212450181² = 9789871606813865522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2212450181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212450111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106225090 + 1106225091.

It is an arithmetic number, because the mean of its divisors is an integer number (1106225091).

Almost surely, 2^2212450181 is an apocalyptic number.

It is an amenable number.

2212450181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212450181 is an equidigital number, since it uses as much as digits as its factorization.

2212450181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 2212450181 is about 47036.6897325907. The cubic root of 2212450181 is about 1303.0402573090.

The spelling of 2212450181 in words is "two billion, two hundred twelve million, four hundred fifty thousand, one hundred eighty-one".