121120200110 has 128 divisors (see below), whose sum is σ = 272440627200. Its totient is φ = 37747607040.

The previous prime is 121120200041. The next prime is 121120200133. The reversal of 121120200110 is 11002021121.

It is a junction number, because it is equal to n+sod(n) for n = 121120200091 and 121120200100.

It is a congruent number.

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, 30119900 + ... + 30123920.

It is an arithmetic number, because the mean of its divisors is an integer number (2128442400).

Almost surely, 2^121120200110 is an apocalyptic number.

121120200110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121120200110 is an abundant number, since it is smaller than the sum of its proper divisors (151320427090).

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

121120200110 is a wasteful number, since it uses less digits than its factorization.

121120200110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121120200110 its reverse (11002021121), we get a palindrome (132122221231).

The spelling of 121120200110 in words is "one hundred twenty-one billion, one hundred twenty million, two hundred thousand, one hundred ten".