7222450231 has 2 divisors, whose sum is σ = 7222450232. Its totient is φ = 7222450230.

The previous prime is 7222450201. The next prime is 7222450241. The reversal of 7222450231 is 1320542227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7222450231 - 2¹¹ = 7222448183 is a prime.

It is a super-2 number, since 2×7222450231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7222450231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7222450201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3611225115 + 3611225116.

It is an arithmetic number, because the mean of its divisors is an integer number (3611225116).

Almost surely, 2^7222450231 is an apocalyptic number.

7222450231 is a deficient number, since it is larger than the sum of its proper divisors (1).

7222450231 is an equidigital number, since it uses as much as digits as its factorization.

7222450231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 7222450231 is about 84985.0000353003. Note that the first 4 decimals coincide. The cubic root of 7222450231 is about 1932.9836738405.

Adding to 7222450231 its reverse (1320542227), we get a palindrome (8542992458).

The spelling of 7222450231 in words is "seven billion, two hundred twenty-two million, four hundred fifty thousand, two hundred thirty-one".