100120002011220 has 24 divisors (see below), whose sum is σ = 280336005631584. Its totient is φ = 26698667202976.

The previous prime is 100120002011191. The next prime is 100120002011231. The reversal of 100120002011220 is 22110200021001.

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 = 100120002011196 and 100120002011205.

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 7 ways as a sum of consecutive naturals, for example, 834333350034 + ... + 834333350153.

It is an arithmetic number, because the mean of its divisors is an integer number (11680666901316).

Almost surely, 2^{100120002011220} is an apocalyptic number.

100120002011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100120002011220 is an abundant number, since it is smaller than the sum of its proper divisors (180216003620364).

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

100120002011220 is a wasteful number, since it uses less digits than its factorization.

100120002011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668666700199 (or 1668666700197 counting only the distinct ones).

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

Adding to 100120002011220 its reverse (22110200021001), we get a palindrome (122230202032221).

The spelling of 100120002011220 in words is "one hundred trillion, one hundred twenty billion, two million, eleven thousand, two hundred twenty".