121222112200110 has 24 divisors (see below), whose sum is σ = 315177491720520. Its totient is φ = 32325896586672.

The previous prime is 121222112200019. The next prime is 121222112200117. The reversal of 121222112200110 is 11002211222121.

121222112200110 is a `hidden beast` number, since 1 + 2 + 122 + 211 + 220 + 0 + 110 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222112200117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 673456178800 + ... + 673456178979.

It is an arithmetic number, because the mean of its divisors is an integer number (13132395488355).

Almost surely, 2^{121222112200110} is an apocalyptic number.

121222112200110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121222112200110 is an abundant number, since it is smaller than the sum of its proper divisors (193955379520410).

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

121222112200110 is a wasteful number, since it uses less digits than its factorization.

121222112200110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346912357792 (or 1346912357789 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121222112200110 its reverse (11002211222121), we get a palindrome (132224323422231).

The spelling of 121222112200110 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred twelve million, two hundred thousand, one hundred ten".