7220353401 has 12 divisors (see below), whose sum is σ = 10536920212. Its totient is φ = 4763943936.

The previous prime is 7220353369. The next prime is 7220353447. The reversal of 7220353401 is 1043530227.

7220353401 is a `hidden beast` number, since 7 + 2 + 203 + 53 + 401 = 666.

7220353401 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4629441600 + 2590911801 = 68040^2 + 50901^2 .

It is not a de Polignac number, because 7220353401 - 2⁵ = 7220353369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7220353201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4134496 + ... + 4136241.

Almost surely, 2^7220353401 is an apocalyptic number.

It is an amenable number.

7220353401 is a deficient number, since it is larger than the sum of its proper divisors (3316566811).

7220353401 is a wasteful number, since it uses less digits than its factorization.

7220353401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8270840 (or 8270837 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 7220353401 is about 84972.6626686489. The cubic root of 7220353401 is about 1932.7965937256.

Adding to 7220353401 its reverse (1043530227), we get a palindrome (8263883628).

The spelling of 7220353401 in words is "seven billion, two hundred twenty million, three hundred fifty-three thousand, four hundred one".