2120133217 has 2 divisors, whose sum is σ = 2120133218. Its totient is φ = 2120133216.

The previous prime is 2120133187. The next prime is 2120133227. The reversal of 2120133217 is 7123310212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1199860321 + 920272896 = 34639^2 + 30336^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120133217 - 2¹⁹ = 2119608929 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120133227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060066608 + 1060066609.

It is an arithmetic number, because the mean of its divisors is an integer number (1060066609).

Almost surely, 2^2120133217 is an apocalyptic number.

It is an amenable number.

2120133217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120133217 is an equidigital number, since it uses as much as digits as its factorization.

2120133217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 2120133217 is about 46044.9043543365. The cubic root of 2120133217 is about 1284.6585651325.

Adding to 2120133217 its reverse (7123310212), we get a palindrome (9243443429).

The spelling of 2120133217 in words is "two billion, one hundred twenty million, one hundred thirty-three thousand, two hundred seventeen".