100022221222 has 128 divisors (see below), whose sum is σ = 193192086528. Its totient is φ = 37718784000.

The previous prime is 100022221171. The next prime is 100022221223. The reversal of 100022221222 is 222122220001.

It is a junction number, because it is equal to n+sod(n) for n = 100022221196 and 100022221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100022221223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 155555233 + ... + 155555875.

It is an arithmetic number, because the mean of its divisors is an integer number (1509313176).

Almost surely, 2^100022221222 is an apocalyptic number.

100022221222 is a deficient number, since it is larger than the sum of its proper divisors (93169865306).

100022221222 is a wasteful number, since it uses less digits than its factorization.

100022221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974.

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

Adding to 100022221222 its reverse (222122220001), we get a palindrome (322144441223).

It can be divided in two parts, 1000 and 22221222, that added together give a palindrome (22222222).

The spelling of 100022221222 in words is "one hundred billion, twenty-two million, two hundred twenty-one thousand, two hundred twenty-two".