121102222201110 has 256 divisors, whose sum is σ = 345245536051200. Its totient is φ = 30140065267200.

The previous prime is 121102222201067. The next prime is 121102222201117. The reversal of 121102222201110 is 11102222201121.

121102222201110 is a `hidden beast` number, since 1 + 2 + 110 + 222 + 220 + 1 + 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 (121102222201117) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 212589765 + ... + 213158655.

It is an arithmetic number, because the mean of its divisors is an integer number (1348615375200).

Almost surely, 2^{121102222201110} is an apocalyptic number.

121102222201110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121102222201110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172622768025600).

121102222201110 is an abundant number, since it is smaller than the sum of its proper divisors (224143313850090).

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

121102222201110 is a wasteful number, since it uses less digits than its factorization.

121102222201110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569844 (or 569838 counting only the distinct ones).

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

Adding to 121102222201110 its reverse (11102222201121), we get a palindrome (132204444402231).

The spelling of 121102222201110 in words is "one hundred twenty-one trillion, one hundred two billion, two hundred twenty-two million, two hundred one thousand, one hundred ten".