74222232331 has 4 divisors (see below), whose sum is σ = 79931634832. Its totient is φ = 68512829832.

The previous prime is 74222232311. The next prime is 74222232347. The reversal of 74222232331 is 13323222247.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74222232331 - 2⁹ = 74222231819 is a prime.

It is a super-2 number, since 2×74222232331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74222232293 and 74222232302.

It is not an unprimeable number, because it can be changed into a prime (74222232311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2854701231 + ... + 2854701256.

It is an arithmetic number, because the mean of its divisors is an integer number (19982908708).

Almost surely, 2^74222232331 is an apocalyptic number.

74222232331 is a deficient number, since it is larger than the sum of its proper divisors (5709402501).

74222232331 is a wasteful number, since it uses less digits than its factorization.

74222232331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5709402500.

The product of its digits is 24192, while the sum is 31.

Adding to 74222232331 its reverse (13323222247), we get a palindrome (87545454578).

The spelling of 74222232331 in words is "seventy-four billion, two hundred twenty-two million, two hundred thirty-two thousand, three hundred thirty-one".