20121100200110 has 128 divisors (see below), whose sum is σ = 47128794209280. Its totient is φ = 6006261279744.

The previous prime is 20121100200043. The next prime is 20121100200161. The reversal of 20121100200110 is 1100200112102.

It is a junction number, because it is equal to n+sod(n) for n = 20121100200091 and 20121100200100.

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, 1361522 + ... + 6488138.

It is an arithmetic number, because the mean of its divisors is an integer number (368193704760).

Almost surely, 2^{20121100200110} is an apocalyptic number.

20121100200110 is an abundant number, since it is smaller than the sum of its proper divisors (27007694009170).

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

20121100200110 is a wasteful number, since it uses less digits than its factorization.

20121100200110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5126890.

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

Adding to 20121100200110 its reverse (1100200112102), we get a palindrome (21221300312212).

The spelling of 20121100200110 in words is "twenty trillion, one hundred twenty-one billion, one hundred million, two hundred thousand, one hundred ten".