7212117 has 8 divisors (see below), whose sum is σ = 10490400. Its totient is φ = 4370960.

The previous prime is 7212083. The next prime is 7212157. The reversal of 7212117 is 7112127.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7212117 - 2⁸ = 7211861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7212093 and 7212102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7212157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109242 + ... + 109307.

It is an arithmetic number, because the mean of its divisors is an integer number (1311300).

Almost surely, 2^7212117 is an apocalyptic number.

It is an amenable number.

7212117 is a deficient number, since it is larger than the sum of its proper divisors (3278283).

7212117 is a wasteful number, since it uses less digits than its factorization.

7212117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218563.

The product of its digits is 196, while the sum is 21.

The square root of 7212117 is about 2685.5384934869. The cubic root of 7212117 is about 193.2061387571.

The spelling of 7212117 in words is "seven million, two hundred twelve thousand, one hundred seventeen".