2120202030217 has 2 divisors, whose sum is σ = 2120202030218. Its totient is φ = 2120202030216.

The previous prime is 2120202030197. The next prime is 2120202030239. The reversal of 2120202030217 is 7120302020212.

It is an a-pointer prime, because the next prime (2120202030239) can be obtained adding 2120202030217 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1102355104761 + 1017846925456 = 1049931^2 + 1008884^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120202030217 - 2¹⁵ = 2120201997449 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120202090217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060101015108 + 1060101015109.

It is an arithmetic number, because the mean of its divisors is an integer number (1060101015109).

Almost surely, 2^{2120202030217} is an apocalyptic number.

It is an amenable number.

2120202030217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120202030217 is an equidigital number, since it uses as much as digits as its factorization.

2120202030217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 2120202030217 its reverse (7120302020212), we get a palindrome (9240504050429).

The spelling of 2120202030217 in words is "two trillion, one hundred twenty billion, two hundred two million, thirty thousand, two hundred seventeen".