121200100010110 has 32 divisors (see below), whose sum is σ = 243056602893312. Its totient is φ = 43135045262880.

The previous prime is 121200100010107. The next prime is 121200100010131. The reversal of 121200100010110 is 11010001002121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11721474522 + ... + 11721484861.

It is an arithmetic number, because the mean of its divisors is an integer number (7595518840416).

Almost surely, 2^{121200100010110} is an apocalyptic number.

121200100010110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121200100010110 is an abundant number, since it is smaller than the sum of its proper divisors (121856502883202).

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

121200100010110 is a wasteful number, since it uses less digits than its factorization.

121200100010110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23442959448.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121200100010110 its reverse (11010001002121), we get a palindrome (132210101012231).

The spelling of 121200100010110 in words is "one hundred twenty-one trillion, two hundred billion, one hundred million, ten thousand, one hundred ten".