100111021122220 has 12 divisors (see below), whose sum is σ = 210233144356704. Its totient is φ = 40044408448880.

The previous prime is 100111021122143. The next prime is 100111021122239. The reversal of 100111021122220 is 22221120111001.

It is a junction number, because it is equal to n+sod(n) for n = 100111021122194 and 100111021122203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2502775528036 + ... + 2502775528075.

It is an arithmetic number, because the mean of its divisors is an integer number (17519428696392).

Almost surely, 2^{100111021122220} is an apocalyptic number.

100111021122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100111021122220 is an abundant number, since it is smaller than the sum of its proper divisors (110122123234484).

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

100111021122220 is a wasteful number, since it uses less digits than its factorization.

100111021122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005551056120 (or 5005551056118 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100111021122220 its reverse (22221120111001), we get a palindrome (122332141233221).

The spelling of 100111021122220 in words is "one hundred trillion, one hundred eleven billion, twenty-one million, one hundred twenty-two thousand, two hundred twenty".