31330233222 has 32 divisors (see below), whose sum is σ = 63046107648. Its totient is φ = 10379183136.

The previous prime is 31330233211. The next prime is 31330233223. The reversal of 31330233222 is 22233203313.

It is a zygodrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 31330233192 and 31330233201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31330233223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4629213 + ... + 4635975.

It is an arithmetic number, because the mean of its divisors is an integer number (1970190864).

Almost surely, 2^31330233222 is an apocalyptic number.

31330233222 is an abundant number, since it is smaller than the sum of its proper divisors (31715874426).

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

31330233222 is a wasteful number, since it uses less digits than its factorization.

31330233222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11404.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 31330233222 its reverse (22233203313), we get a palindrome (53563436535).

The spelling of 31330233222 in words is "thirty-one billion, three hundred thirty million, two hundred thirty-three thousand, two hundred twenty-two".