10031331222 has 64 divisors (see below), whose sum is σ = 24398035200. Its totient is φ = 3029840640.

The previous prime is 10031331209. The next prime is 10031331227. The reversal of 10031331222 is 22213313001.

10031331222 is a `hidden beast` number, since 100 + 313 + 31 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10031331195 and 10031331204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031331227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154854 + ... + 209862.

It is an arithmetic number, because the mean of its divisors is an integer number (381219300).

Almost surely, 2^10031331222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10031331222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12199017600).

10031331222 is an abundant number, since it is smaller than the sum of its proper divisors (14366703978).

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

10031331222 is a wasteful number, since it uses less digits than its factorization.

10031331222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55338 (or 55332 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 10031331222 its reverse (22213313001), we get a palindrome (32244644223).

The spelling of 10031331222 in words is "ten billion, thirty-one million, three hundred thirty-one thousand, two hundred twenty-two".