7221445234 has 8 divisors (see below), whose sum is σ = 10894782060. Its totient is φ = 3589851216.

The previous prime is 7221445213. The next prime is 7221445267. The reversal of 7221445234 is 4325441227.

It can be written as a sum of positive squares in 2 ways, for example, as 7098568009 + 122877225 = 84253^2 + 11085^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7221445234² (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 7221445234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10435269 + ... + 10435960.

Almost surely, 2^7221445234 is an apocalyptic number.

7221445234 is a deficient number, since it is larger than the sum of its proper divisors (3673336826).

7221445234 is a wasteful number, since it uses less digits than its factorization.

7221445234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20871404.

The product of its digits is 53760, while the sum is 34.

The square root of 7221445234 is about 84979.0870391063. The cubic root of 7221445234 is about 1932.8940120755.

The spelling of 7221445234 in words is "seven billion, two hundred twenty-one million, four hundred forty-five thousand, two hundred thirty-four".