100000220111220 has 192 divisors, whose sum is σ = 332208724135680. Its totient is φ = 22156110336000.

The previous prime is 100000220111213. The next prime is 100000220111227. The reversal of 100000220111220 is 22111022000001.

It is an interprime number because it is at equal distance from previous prime (100000220111213) and next prime (100000220111227).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 100000220111196 and 100000220111205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000220111227) 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, 56831625 + ... + 58564784.

It is an arithmetic number, because the mean of its divisors is an integer number (1730253771540).

Almost surely, 2^{100000220111220} is an apocalyptic number.

100000220111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100000220111220 is an abundant number, since it is smaller than the sum of its proper divisors (232208504024460).

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

100000220111220 is a wasteful number, since it uses less digits than its factorization.

100000220111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115396546 (or 115396544 counting only the distinct ones).

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

Adding to 100000220111220 its reverse (22111022000001), we get a palindrome (122111242111221).

The spelling of 100000220111220 in words is "one hundred trillion, two hundred twenty million, one hundred eleven thousand, two hundred twenty".