7212207 has 4 divisors (see below), whose sum is σ = 9616280. Its totient is φ = 4808136.

The previous prime is 7212193. The next prime is 7212209. The reversal of 7212207 is 7022127.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7212207 - 2¹⁴ = 7195823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7212209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202032 + ... + 1202037.

It is an arithmetic number, because the mean of its divisors is an integer number (2404070).

Almost surely, 2^7212207 is an apocalyptic number.

7212207 is a deficient number, since it is larger than the sum of its proper divisors (2404073).

7212207 is a wasteful number, since it uses less digits than its factorization.

7212207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404072.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 7212207 is about 2685.5552498506. Note that the first 3 decimals coincide. The cubic root of 7212207 is about 193.2069424268.

The spelling of 7212207 in words is "seven million, two hundred twelve thousand, two hundred seven".