31222201330 has 8 divisors (see below), whose sum is σ = 56199962412. Its totient is φ = 12488880528.

The previous prime is 31222201321. The next prime is 31222201337. The reversal of 31222201330 is 3310222213.

It can be written as a sum of positive squares in 2 ways, for example, as 30737453041 + 484748289 = 175321^2 + 22017^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 31222201298 and 31222201307.

It is not an unprimeable number, because it can be changed into a prime (31222201337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1561110057 + ... + 1561110076.

Almost surely, 2^31222201330 is an apocalyptic number.

31222201330 is a deficient number, since it is larger than the sum of its proper divisors (24977761082).

31222201330 is a wasteful number, since it uses less digits than its factorization.

31222201330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122220140.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31222201330 its reverse (3310222213), we get a palindrome (34532423543).

The spelling of 31222201330 in words is "thirty-one billion, two hundred twenty-two million, two hundred one thousand, three hundred thirty".