22012331020 has 12 divisors (see below), whose sum is σ = 46225895184. Its totient is φ = 8804932400.

The previous prime is 22012331009. The next prime is 22012331021. The reversal of 22012331020 is 2013321022.

It is a junction number, because it is equal to n+sod(n) for n = 22012330985 and 22012331003.

It is not an unprimeable number, because it can be changed into a prime (22012331021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550308256 + ... + 550308295.

It is an arithmetic number, because the mean of its divisors is an integer number (3852157932).

Almost surely, 2^22012331020 is an apocalyptic number.

22012331020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012331020 is an abundant number, since it is smaller than the sum of its proper divisors (24213564164).

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

22012331020 is a wasteful number, since it uses less digits than its factorization.

22012331020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100616560 (or 1100616558 counting only the distinct ones).

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

Adding to 22012331020 its reverse (2013321022), we get a palindrome (24025652042).

The spelling of 22012331020 in words is "twenty-two billion, twelve million, three hundred thirty-one thousand, twenty".