75122227730 has 32 divisors (see below), whose sum is σ = 149930993088. Its totient is φ = 26869348800.

The previous prime is 75122227651. The next prime is 75122227771. The reversal of 75122227730 is 3772222157.

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 15 ways as a sum of consecutive naturals, for example, 5591072 + ... + 5604491.

It is an arithmetic number, because the mean of its divisors is an integer number (4685343534).

Almost surely, 2^75122227730 is an apocalyptic number.

75122227730 is a deficient number, since it is larger than the sum of its proper divisors (74808765358).

75122227730 is a wasteful number, since it uses less digits than its factorization.

75122227730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11195642.

The product of its (nonzero) digits is 82320, while the sum is 38.

Adding to 75122227730 its reverse (3772222157), we get a palindrome (78894449887).

The spelling of 75122227730 in words is "seventy-five billion, one hundred twenty-two million, two hundred twenty-seven thousand, seven hundred thirty".