7211230 has 48 divisors (see below), whose sum is σ = 14941584. Its totient is φ = 2496000.

The previous prime is 7211201. The next prime is 7211231. The reversal of 7211230 is 321127.

It is a happy number.

It is a super-2 number, since 2×7211230² = 104003676225800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7211231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28605 + ... + 28855.

It is an arithmetic number, because the mean of its divisors is an integer number (311283).

Almost surely, 2^7211230 is an apocalyptic number.

7211230 is an abundant number, since it is smaller than the sum of its proper divisors (7730354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7211230 is a wasteful number, since it uses less digits than its factorization.

7211230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 7211230 is about 2685.3733446208. The cubic root of 7211230 is about 193.1982177878.

Adding to 7211230 its reverse (321127), we get a palindrome (7532357).

The spelling of 7211230 in words is "seven million, two hundred eleven thousand, two hundred thirty".