22031020312 has 32 divisors (see below), whose sum is σ = 47248394400. Its totient is φ = 9434052864.

The previous prime is 22031020309. The next prime is 22031020339. The reversal of 22031020312 is 21302013022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94237 + ... + 230092.

It is an arithmetic number, because the mean of its divisors is an integer number (1476512325).

Almost surely, 2^22031020312 is an apocalyptic number.

It is an amenable number.

22031020312 is an abundant number, since it is smaller than the sum of its proper divisors (25217374088).

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

22031020312 is a wasteful number, since it uses less digits than its factorization.

22031020312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325555 (or 325551 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22031020312 its reverse (21302013022), we get a palindrome (43333033334).

The spelling of 22031020312 in words is "twenty-two billion, thirty-one million, twenty thousand, three hundred twelve".