2212122197 has 2 divisors, whose sum is σ = 2212122198. Its totient is φ = 2212122196.

The previous prime is 2212122181. The next prime is 2212122251. The reversal of 2212122197 is 7912212122.

2212122197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1123188196 + 1088934001 = 33514^2 + 32999^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212122197 - 2⁴ = 2212122181 is a prime.

It is a super-2 number, since 2×2212122197² = 9786969228920213618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212122137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106061098 + 1106061099.

It is an arithmetic number, because the mean of its divisors is an integer number (1106061099).

Almost surely, 2^2212122197 is an apocalyptic number.

It is an amenable number.

2212122197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212122197 is an equidigital number, since it uses as much as digits as its factorization.

2212122197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 29.

The square root of 2212122197 is about 47033.2031335311. The cubic root of 2212122197 is about 1302.9758645256.

The spelling of 2212122197 in words is "two billion, two hundred twelve million, one hundred twenty-two thousand, one hundred ninety-seven".