2212940897 has 2 divisors, whose sum is σ = 2212940898. Its totient is φ = 2212940896.

The previous prime is 2212940869. The next prime is 2212940911. The reversal of 2212940897 is 7980492122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1788951616 + 423989281 = 42296^2 + 20591^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212940897 - 2¹⁰ = 2212939873 is a prime.

It is not a weakly prime, because it can be changed into another prime (2212940867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106470448 + 1106470449.

It is an arithmetic number, because the mean of its divisors is an integer number (1106470449).

Almost surely, 2^2212940897 is an apocalyptic number.

It is an amenable number.

2212940897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212940897 is an equidigital number, since it uses as much as digits as its factorization.

2212940897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 2212940897 is about 47041.9057543378. The cubic root of 2212940897 is about 1303.1365872272.

The spelling of 2212940897 in words is "two billion, two hundred twelve million, nine hundred forty thousand, eight hundred ninety-seven".