7220120 has 16 divisors (see below), whose sum is σ = 16245360. Its totient is φ = 2888032.

The previous prime is 7220113. The next prime is 7220123. The reversal of 7220120 is 210227.

It is a junction number, because it is equal to n+sod(n) for n = 7220095 and 7220104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90212 + ... + 90291.

It is an arithmetic number, because the mean of its divisors is an integer number (1015335).

Almost surely, 2^7220120 is an apocalyptic number.

It is an amenable number.

7220120 is an abundant number, since it is smaller than the sum of its proper divisors (9025240).

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

7220120 is a wasteful number, since it uses less digits than its factorization.

7220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180514 (or 180510 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 7220120 is about 2687.0280981039. The cubic root of 7220120 is about 193.2775767343.

Adding to 7220120 its reverse (210227), we get a palindrome (7430347).

The spelling of 7220120 in words is "seven million, two hundred twenty thousand, one hundred twenty".