10021221192 has 32 divisors (see below), whose sum is σ = 25730164800. Its totient is φ = 3250125504.

The previous prime is 10021221191. The next prime is 10021221239. The reversal of 10021221192 is 29112212001.

10021221192 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (10021221191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5641692 + ... + 5643467.

It is an arithmetic number, because the mean of its divisors is an integer number (804067650).

Almost surely, 2^10021221192 is an apocalyptic number.

10021221192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10021221192 is an abundant number, since it is smaller than the sum of its proper divisors (15708943608).

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

10021221192 is a wasteful number, since it uses less digits than its factorization.

10021221192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11285205 (or 11285201 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 10021221192 its reverse (29112212001), we get a palindrome (39133433193).

The spelling of 10021221192 in words is "ten billion, twenty-one million, two hundred twenty-one thousand, one hundred ninety-two".