7222020 has 96 divisors (see below), whose sum is σ = 22353408. Its totient is φ = 1731072.

The previous prime is 7222009. The next prime is 7222021. The reversal of 7222020 is 202227.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36562 + ... + 36758.

It is an arithmetic number, because the mean of its divisors is an integer number (232848).

Almost surely, 2^7222020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7222020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11176704).

7222020 is an abundant number, since it is smaller than the sum of its proper divisors (15131388).

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

7222020 is a wasteful number, since it uses less digits than its factorization.

7222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 7222020 is about 2687.3816253000. The cubic root of 7222020 is about 193.2945291390.

Adding to 7222020 its reverse (202227), we get a palindrome (7424247).

The spelling of 7222020 in words is "seven million, two hundred twenty-two thousand, twenty".