100100110121220 has 96 divisors (see below), whose sum is σ = 308787666638976. Its totient is φ = 24026429056000.

The previous prime is 100100110121131. The next prime is 100100110121233. The reversal of 100100110121220 is 22121011001001.

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 = 100100110121196 and 100100110121205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 750759249 + ... + 750892568.

It is an arithmetic number, because the mean of its divisors is an integer number (3216538194156).

Almost surely, 2^{100100110121220} is an apocalyptic number.

100100110121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100100110121220 is an abundant number, since it is smaller than the sum of its proper divisors (208687556517756).

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

100100110121220 is a wasteful number, since it uses less digits than its factorization.

100100110121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501651941 (or 1501651939 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 100100110121220 its reverse (22121011001001), we get a palindrome (122221121122221).

The spelling of 100100110121220 in words is "one hundred trillion, one hundred billion, one hundred ten million, one hundred twenty-one thousand, two hundred twenty".