11220121201110 has 64 divisors (see below), whose sum is σ = 28784429775360. Its totient is φ = 2792140440320.

The previous prime is 11220121201099. The next prime is 11220121201153. The reversal of 11220121201110 is 1110212102211.

It is a happy number.

11220121201110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11220121201110² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11220121201110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198277140 + ... + 198333719.

It is an arithmetic number, because the mean of its divisors is an integer number (449756715240).

Almost surely, 2^{11220121201110} is an apocalyptic number.

11220121201110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11220121201110 is an abundant number, since it is smaller than the sum of its proper divisors (17564308574250).

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

11220121201110 is a wasteful number, since it uses less digits than its factorization.

11220121201110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396610933.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11220121201110 its reverse (1110212102211), we get a palindrome (12330333303321).

The spelling of 11220121201110 in words is "eleven trillion, two hundred twenty billion, one hundred twenty-one million, two hundred one thousand, one hundred ten".