7121230 has 16 divisors (see below), whose sum is σ = 13117104. Its totient is φ = 2782080.

The previous prime is 7121209. The next prime is 7121263. The reversal of 7121230 is 321217.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7851 + ... + 8710.

It is an arithmetic number, because the mean of its divisors is an integer number (819819).

Almost surely, 2^7121230 is an apocalyptic number.

7121230 is a deficient number, since it is larger than the sum of its proper divisors (5995874).

7121230 is a wasteful number, since it uses less digits than its factorization.

7121230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16611.

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

The square root of 7121230 is about 2668.5632838664. The cubic root of 7121230 is about 192.3911117475.

Adding to 7121230 its reverse (321217), we get a palindrome (7442447).

The spelling of 7121230 in words is "seven million, one hundred twenty-one thousand, two hundred thirty".