10031213322 has 24 divisors (see below), whose sum is σ = 23406164964. Its totient is φ = 3086527104.

The previous prime is 10031213279. The next prime is 10031213323. The reversal of 10031213322 is 22331213001.

10031213322 is a `hidden beast` number, since 100 + 31 + 213 + 322 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8428892481 + 1602320841 = 91809^2 + 40029^2 .

It is a super-2 number, since 2×10031213322² (a number of 21 digits) contains 22 as substring.

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 = 10031213295 and 10031213304.

It is not an unprimeable number, because it can be changed into a prime (10031213323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21433983 + ... + 21434450.

Almost surely, 2^10031213322 is an apocalyptic number.

10031213322 is an abundant number, since it is smaller than the sum of its proper divisors (13374951642).

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

10031213322 is a wasteful number, since it uses less digits than its factorization.

10031213322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42868454 (or 42868451 counting only the distinct ones).

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

Adding to 10031213322 its reverse (22331213001), we get a palindrome (32362426323).

The spelling of 10031213322 in words is "ten billion, thirty-one million, two hundred thirteen thousand, three hundred twenty-two".