202011001217 has 2 divisors, whose sum is σ = 202011001218. Its totient is φ = 202011001216.

The previous prime is 202011001121. The next prime is 202011001229. The reversal of 202011001217 is 712100110202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103040358001 + 98970643216 = 320999^2 + 314596^2 .

It is a cyclic number.

It is not a de Polignac number, because 202011001217 - 2¹² = 202010997121 is a prime.

It is a super-2 number, since 2×202011001217² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202011001195 and 202011001204.

It is not a weakly prime, because it can be changed into another prime (202011001817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101005500608 + 101005500609.

It is an arithmetic number, because the mean of its divisors is an integer number (101005500609).

Almost surely, 2^202011001217 is an apocalyptic number.

It is an amenable number.

202011001217 is a deficient number, since it is larger than the sum of its proper divisors (1).

202011001217 is an equidigital number, since it uses as much as digits as its factorization.

202011001217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 202011001217 its reverse (712100110202), we get a palindrome (914111111419).

The spelling of 202011001217 in words is "two hundred two billion, eleven million, one thousand, two hundred seventeen".