100111220112220 has 24 divisors (see below), whose sum is σ = 210236054314608. Its totient is φ = 40044013363200.

The previous prime is 100111220112193. The next prime is 100111220112251. The reversal of 100111220112220 is 22211022111001.

It is a junction number, because it is equal to n+sod(n) for n = 100111220112194 and 100111220112203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27935746 + ... + 31314985.

It is an arithmetic number, because the mean of its divisors is an integer number (8759835596442).

Almost surely, 2^{100111220112220} is an apocalyptic number.

100111220112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100111220112220 is an abundant number, since it is smaller than the sum of its proper divisors (110124834202388).

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

100111220112220 is a wasteful number, since it uses less digits than its factorization.

100111220112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59335221 (or 59335219 counting only the distinct ones).

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

Adding to 100111220112220 its reverse (22211022111001), we get a palindrome (122322242223221).

The spelling of 100111220112220 in words is "one hundred trillion, one hundred eleven billion, two hundred twenty million, one hundred twelve thousand, two hundred twenty".