7213223401 has 2 divisors, whose sum is σ = 7213223402. Its totient is φ = 7213223400.

The previous prime is 7213223363. The next prime is 7213223429. The reversal of 7213223401 is 1043223127.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6320409001 + 892814400 = 79501^2 + 29880^2 .

It is an emirp because it is prime and its reverse (1043223127) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7213223401 is a prime.

It is not a weakly prime, because it can be changed into another prime (7213223431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3606611700 + 3606611701.

It is an arithmetic number, because the mean of its divisors is an integer number (3606611701).

Almost surely, 2^7213223401 is an apocalyptic number.

It is an amenable number.

7213223401 is a deficient number, since it is larger than the sum of its proper divisors (1).

7213223401 is an equidigital number, since it uses as much as digits as its factorization.

7213223401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 7213223401 is about 84930.6976363670. The cubic root of 7213223401 is about 1932.1601808167.

Adding to 7213223401 its reverse (1043223127), we get a palindrome (8256446528).

The spelling of 7213223401 in words is "seven billion, two hundred thirteen million, two hundred twenty-three thousand, four hundred one".