31445132222 has 8 divisors (see below), whose sum is σ = 53905940976. Its totient is φ = 13476485232.

The previous prime is 31445132219. The next prime is 31445132227. The reversal of 31445132222 is 22223154413.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31445132227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123040423 + ... + 1123040450.

It is an arithmetic number, because the mean of its divisors is an integer number (6738242622).

Almost surely, 2^31445132222 is an apocalyptic number.

31445132222 is a deficient number, since it is larger than the sum of its proper divisors (22460808754).

31445132222 is a wasteful number, since it uses less digits than its factorization.

31445132222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246080882.

The product of its digits is 11520, while the sum is 29.

Adding to 31445132222 its reverse (22223154413), we get a palindrome (53668286635).

The spelling of 31445132222 in words is "thirty-one billion, four hundred forty-five million, one hundred thirty-two thousand, two hundred twenty-two".