7251137222 has 16 divisors (see below), whose sum is σ = 12634301472. Its totient is φ = 3056685120.

The previous prime is 7251137221. The next prime is 7251137227. The reversal of 7251137222 is 2227311527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7251137221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4244543 + ... + 4246250.

It is an arithmetic number, because the mean of its divisors is an integer number (789643842).

Almost surely, 2^7251137222 is an apocalyptic number.

7251137222 is a deficient number, since it is larger than the sum of its proper divisors (5383164250).

7251137222 is a wasteful number, since it uses less digits than its factorization.

7251137222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8490863.

The product of its digits is 11760, while the sum is 32.

The square root of 7251137222 is about 85153.6095653026. The cubic root of 7251137222 is about 1935.5395114847.

Adding to 7251137222 its reverse (2227311527), we get a palindrome (9478448749).

The spelling of 7251137222 in words is "seven billion, two hundred fifty-one million, one hundred thirty-seven thousand, two hundred twenty-two".