2212917 has 16 divisors (see below), whose sum is σ = 3397632. Its totient is φ = 1254960.

The previous prime is 2212891. The next prime is 2212921. The reversal of 2212917 is 7192122.

It is not a de Polignac number, because 2212917 - 2¹⁰ = 2211893 is a prime.

2212917 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3192 + ... + 3822.

It is an arithmetic number, because the mean of its divisors is an integer number (212352).

2^2212917 is an apocalyptic number.

It is an amenable number.

2212917 is a deficient number, since it is larger than the sum of its proper divisors (1184715).

2212917 is a wasteful number, since it uses less digits than its factorization.

2212917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808.

The product of its digits is 504, while the sum is 24.

The square root of 2212917 is about 1487.5876444768. The cubic root of 2212917 is about 130.3131896461.

The spelling of 2212917 in words is "two million, two hundred twelve thousand, nine hundred seventeen".