31222000222 has 48 divisors (see below), whose sum is σ = 55299594240. Its totient is φ = 13179726000.

The previous prime is 31222000193. The next prime is 31222000223. The reversal of 31222000222 is 22200022213.

It is a junction number, because it is equal to n+sod(n) for n = 31222000196 and 31222000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31222000223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12237847 + ... + 12240397.

It is an arithmetic number, because the mean of its divisors is an integer number (1152074880).

Almost surely, 2^31222000222 is an apocalyptic number.

31222000222 is a deficient number, since it is larger than the sum of its proper divisors (24077594018).

31222000222 is a wasteful number, since it uses less digits than its factorization.

31222000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4397 (or 4390 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 31222000222 its reverse (22200022213), we get a palindrome (53422022435).

The spelling of 31222000222 in words is "thirty-one billion, two hundred twenty-two million, two hundred twenty-two", and thus it is an aban number.