100100121222 has 32 divisors (see below), whose sum is σ = 207765485280. Its totient is φ = 32113186560.

The previous prime is 100100121181. The next prime is 100100121241. The reversal of 100100121222 is 222121001001.

It is a junction number, because it is equal to n+sod(n) for n = 100100121198 and 100100121207.

It is a congruent number.

It is an unprimeable number.

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, 864529 + ... + 973452.

It is an arithmetic number, because the mean of its divisors is an integer number (6492671415).

Almost surely, 2^100100121222 is an apocalyptic number.

100100121222 is an abundant number, since it is smaller than the sum of its proper divisors (107665364058).

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

100100121222 is a wasteful number, since it uses less digits than its factorization.

100100121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838328.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100100121222 its reverse (222121001001), we get a palindrome (322221122223).

The spelling of 100100121222 in words is "one hundred billion, one hundred million, one hundred twenty-one thousand, two hundred twenty-two".