100220021222 has 32 divisors (see below), whose sum is σ = 159900912864. Its totient is φ = 46947059200.

The previous prime is 100220021207. The next prime is 100220021227. The reversal of 100220021222 is 222120022001.

It is a junction number, because it is equal to n+sod(n) for n = 100220021197 and 100220021206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220021227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9368897 + ... + 9379587.

It is an arithmetic number, because the mean of its divisors is an integer number (4996903527).

Almost surely, 2^100220021222 is an apocalyptic number.

100220021222 is a deficient number, since it is larger than the sum of its proper divisors (59680891642).

100220021222 is a wasteful number, since it uses less digits than its factorization.

100220021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11944.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 100220021222 its reverse (222120022001), we get a palindrome (322340043223).

The spelling of 100220021222 in words is "one hundred billion, two hundred twenty million, twenty-one thousand, two hundred twenty-two".