22022221012 has 48 divisors (see below), whose sum is σ = 43352148672. Its totient is φ = 9702817280.

The previous prime is 22022221003. The next prime is 22022221019. The reversal of 22022221012 is 21012222022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022221019) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 136668 + ... + 250444.

It is an arithmetic number, because the mean of its divisors is an integer number (903169764).

Almost surely, 2^22022221012 is an apocalyptic number.

22022221012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22022221012 is a deficient number, since it is larger than the sum of its proper divisors (21329927660).

22022221012 is a wasteful number, since it uses less digits than its factorization.

22022221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113928 (or 113926 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22022221012 its reverse (21012222022), we get a palindrome (43034443034).

The spelling of 22022221012 in words is "twenty-two billion, twenty-two million, two hundred twenty-one thousand, twelve".