7121020 has 24 divisors (see below), whose sum is σ = 15359904. Its totient is φ = 2771136.

The previous prime is 7120999. The next prime is 7121021. The reversal of 7121020 is 201217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7121021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4072 + ... + 5551.

It is an arithmetic number, because the mean of its divisors is an integer number (639996).

Almost surely, 2^7121020 is an apocalyptic number.

It is an amenable number.

7121020 is an abundant number, since it is smaller than the sum of its proper divisors (8238884).

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

7121020 is a wasteful number, since it uses less digits than its factorization.

7121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9669 (or 9667 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 7121020 is about 2668.5239365612. The cubic root of 7121020 is about 192.3892205699.

Adding to 7121020 its reverse (201217), we get a palindrome (7322237).

The spelling of 7121020 in words is "seven million, one hundred twenty-one thousand, twenty".