7211113 has 16 divisors (see below), whose sum is σ = 8968960. Its totient is φ = 5645376.

The previous prime is 7211107. The next prime is 7211119. The reversal of 7211113 is 3111127.

It is an interprime number because it is at equal distance from previous prime (7211107) and next prime (7211119).

It is a cyclic number.

It is not a de Polignac number, because 7211113 - 2⁵ = 7211081 is a prime.

7211113 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7211119) 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, 9556 + ... + 10282.

It is an arithmetic number, because the mean of its divisors is an integer number (560560).

Almost surely, 2^7211113 is an apocalyptic number.

It is an amenable number.

7211113 is a deficient number, since it is larger than the sum of its proper divisors (1757847).

7211113 is a wasteful number, since it uses less digits than its factorization.

7211113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856.

The product of its digits is 42, while the sum is 16.

The square root of 7211113 is about 2685.3515598521. The cubic root of 7211113 is about 193.1971729215.

The spelling of 7211113 in words is "seven million, two hundred eleven thousand, one hundred thirteen".