75221313342 has 32 divisors (see below), whose sum is σ = 172963994112. Its totient is φ = 21363108384.

The previous prime is 75221313341. The next prime is 75221313347. The reversal of 75221313342 is 24331312257.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75221313341) by changing a digit.

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, 5355213 + ... + 5369240.

It is an arithmetic number, because the mean of its divisors is an integer number (5405124816).

Almost surely, 2^75221313342 is an apocalyptic number.

75221313342 is an abundant number, since it is smaller than the sum of its proper divisors (97742680770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75221313342 is a wasteful number, since it uses less digits than its factorization.

75221313342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10724632.

The product of its digits is 30240, while the sum is 33.

Adding to 75221313342 its reverse (24331312257), we get a palindrome (99552625599).

The spelling of 75221313342 in words is "seventy-five billion, two hundred twenty-one million, three hundred thirteen thousand, three hundred forty-two".