121112110200220 has 24 divisors (see below), whose sum is σ = 254355760891008. Its totient is φ = 48440971800000.

The previous prime is 121112110200187. The next prime is 121112110200223. The reversal of 121112110200220 is 22002011211121.

It is a junction number, because it is equal to n+sod(n) for n = 121112110200194 and 121112110200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112110200223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241761031 + ... + 242261470.

It is an arithmetic number, because the mean of its divisors is an integer number (10598156703792).

Almost surely, 2^{121112110200220} is an apocalyptic number.

121112110200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121112110200220 is an abundant number, since it is smaller than the sum of its proper divisors (133243650690788).

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

121112110200220 is a wasteful number, since it uses less digits than its factorization.

121112110200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484035021 (or 484035019 counting only the distinct ones).

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

Adding to 121112110200220 its reverse (22002011211121), we get a palindrome (143114121411341).

The spelling of 121112110200220 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred ten million, two hundred thousand, two hundred twenty".