100122102220 has 96 divisors (see below), whose sum is σ = 241436482560. Its totient is φ = 34164599040.

The previous prime is 100122102209. The next prime is 100122102229. The reversal of 100122102220 is 22201221001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 100122102220.

It is not an unprimeable number, because it can be changed into a prime (100122102229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37399522 + ... + 37402198.

It is an arithmetic number, because the mean of its divisors is an integer number (2514963360).

Almost surely, 2^100122102220 is an apocalyptic number.

100122102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100122102220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120718241280).

100122102220 is an abundant number, since it is smaller than the sum of its proper divisors (141314380340).

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

100122102220 is a wasteful number, since it uses less digits than its factorization.

100122102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863 (or 3861 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100122102220 its reverse (22201221001), we get a palindrome (122323323221).

The spelling of 100122102220 in words is "one hundred billion, one hundred twenty-two million, one hundred two thousand, two hundred twenty".