2217101 has 2 divisors, whose sum is σ = 2217102. Its totient is φ = 2217100.

The previous prime is 2217073. The next prime is 2217107. The reversal of 2217101 is 1017122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1503076 + 714025 = 1226^2 + 845^2 .

It is a cyclic number.

It is not a de Polignac number, because 2217101 - 2¹⁴ = 2200717 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2217107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108550 + 1108551.

It is an arithmetic number, because the mean of its divisors is an integer number (1108551).

2^2217101 is an apocalyptic number.

It is an amenable number.

2217101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2217101 is an equidigital number, since it uses as much as digits as its factorization.

2217101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 2217101 is about 1488.9932840681. The cubic root of 2217101 is about 130.3952663982.

The spelling of 2217101 in words is "two million, two hundred seventeen thousand, one hundred one".