100112221022220 has 192 divisors, whose sum is σ = 343592507059200. Its totient is φ = 23996936747520.

The previous prime is 100112221022161. The next prime is 100112221022249. The reversal of 100112221022220 is 22220122211001.

It is a happy number.

100112221022220 is a `hidden beast` number, since 100 + 112 + 2 + 210 + 22 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 100112221022193 and 100112221022202.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94156224 + ... + 95213543.

It is an arithmetic number, because the mean of its divisors is an integer number (1789544307600).

Almost surely, 2^{100112221022220} is an apocalyptic number.

100112221022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100112221022220 is an abundant number, since it is smaller than the sum of its proper divisors (243480286036980).

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

100112221022220 is a wasteful number, since it uses less digits than its factorization.

100112221022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189369885 (or 189369877 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 100112221022220 its reverse (22220122211001), we get a palindrome (122332343233221).

The spelling of 100112221022220 in words is "one hundred trillion, one hundred twelve billion, two hundred twenty-one million, twenty-two thousand, two hundred twenty".